diff --git a/web/src/locales/ar.json b/web/src/locales/ar.json
index 11f759c..831d99b 100644
--- a/web/src/locales/ar.json
+++ b/web/src/locales/ar.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "تحديث التفضيلات"
+            },
+            "validation": {
+                "language": {
+                    "required": "Please select a language."
+                },
+                "theme": {
+                    "required": "Please select a theme."
+                }
             }
         },
         "title": "الإعدادات",
@@ -1426,5 +1434,10 @@
             "settings": "الإعدادات",
             "sign_out": "تسجيل الخروج"
         }
+    },
+    "sign_out": {
+        "title": "تسجيل الخروج",
+        "desc": "هل أنت متأكد أنك تريد تسجيل الخروج؟ ستحتاج إلى تسجيل الدخول مرة أخرى للوصول إلى حسابك.",
+        "confirm": "تسجيل الخروج"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/da.json b/web/src/locales/da.json
index 276a224..bb00326 100644
--- a/web/src/locales/da.json
+++ b/web/src/locales/da.json
@@ -1434,5 +1434,10 @@
             "settings": "Indstillinger",
             "sign_out": "Log ud"
         }
+    },
+    "sign_out": {
+        "title": "Log ud",
+        "desc": "Er du sikker på, at du vil logge ud? Du skal logge ind igen for at få adgang til din konto.",
+        "confirm": "Log ud"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/de.json b/web/src/locales/de.json
index a645ff0..338c309 100644
--- a/web/src/locales/de.json
+++ b/web/src/locales/de.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "Einstellungen aktualisieren"
+            },
+            "validation": {
+                "language": {
+                    "required": "Bitte wählen Sie eine Sprache aus."
+                },
+                "theme": {
+                    "required": "Bitte wählen Sie ein Thema aus."
+                }
             }
         },
         "title": "Einstellungen",
@@ -1426,5 +1434,10 @@
             "settings": "Einstellungen",
             "sign_out": "Abmelden"
         }
+    },
+    "sign_out": {
+        "title": "Abmelden",
+        "desc": "Möchten Sie sich wirklich abmelden? Sie müssen sich erneut anmelden, um auf Ihr Konto zuzugreifen.",
+        "confirm": "Abmelden"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/en.json b/web/src/locales/en.json
index 44ec391..e277784 100644
--- a/web/src/locales/en.json
+++ b/web/src/locales/en.json
@@ -1434,5 +1434,10 @@
       "settings": "Settings",
       "sign_out": "Sign out"
     }
+  },
+  "sign_out": {
+    "title": "Sign out",
+    "desc": "Are you sure you want to sign out? You will need to sign in again to access your account.",
+    "confirm": "Sign out"
   }
 }
\ No newline at end of file
diff --git a/web/src/locales/es.json b/web/src/locales/es.json
index ee5f057..61eefd9 100644
--- a/web/src/locales/es.json
+++ b/web/src/locales/es.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "Actualizar preferencias"
+            },
+            "validation": {
+                "language": {
+                    "required": "Por favor, seleccione un idioma."
+                },
+                "theme": {
+                    "required": "Por favor, seleccione un tema."
+                }
             }
         },
         "title": "Configuración",
@@ -1426,5 +1434,10 @@
             "settings": "Configuración",
             "sign_out": "Cerrar sesión"
         }
+    },
+    "sign_out": {
+        "title": "Cerrar sesión",
+        "desc": "¿Está seguro de que desea cerrar sesión? Necesitará iniciar sesión nuevamente para acceder a su cuenta.",
+        "confirm": "Cerrar sesión"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/fi.json b/web/src/locales/fi.json
index 06a194e..55f810a 100644
--- a/web/src/locales/fi.json
+++ b/web/src/locales/fi.json
@@ -1434,5 +1434,10 @@
             "settings": "Asetukset",
             "sign_out": "Kirjaudu ulos"
         }
+    },
+    "sign_out": {
+        "title": "Kirjaudu ulos",
+        "desc": "Haluatko varmasti kirjautua ulos? Sinun täytyy kirjautua uudelleen päästäksesi tilillesi.",
+        "confirm": "Kirjaudu ulos"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/fr.json b/web/src/locales/fr.json
index 0917ca5..7787cc6 100644
--- a/web/src/locales/fr.json
+++ b/web/src/locales/fr.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "Mettre à jour les préférences"
+            },
+            "validation": {
+                "language": {
+                    "required": "Veuillez sélectionner une langue."
+                },
+                "theme": {
+                    "required": "Veuillez sélectionner un thème."
+                }
             }
         },
         "title": "Paramètres",
@@ -1426,5 +1434,10 @@
             "settings": "Paramètres",
             "sign_out": "Se déconnecter"
         }
+    },
+    "sign_out": {
+        "title": "Déconnexion",
+        "desc": "Êtes-vous sûr de vouloir vous déconnecter ? Vous devrez vous reconnecter pour accéder à votre compte.",
+        "confirm": "Déconnexion"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/it.json b/web/src/locales/it.json
index 3ebbf9d..0a6fd02 100644
--- a/web/src/locales/it.json
+++ b/web/src/locales/it.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "Aggiorna preferenze"
+            },
+            "validation": {
+                "language": {
+                    "required": "Seleziona una lingua."
+                },
+                "theme": {
+                    "required": "Seleziona un tema."
+                }
             }
         },
         "title": "Impostazioni",
@@ -1426,5 +1434,10 @@
             "settings": "Impostazioni",
             "sign_out": "Disconnetti"
         }
+    },
+    "sign_out": {
+        "title": "Disconnetti",
+        "desc": "Sei sicuro di voler disconnetterti? Dovrai accedere di nuovo per usare il tuo account.",
+        "confirm": "Disconnetti"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/jp.json b/web/src/locales/jp.json
index 751bc94..c46af3c 100644
--- a/web/src/locales/jp.json
+++ b/web/src/locales/jp.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "設定を更新"
+            },
+            "validation": {
+                "language": {
+                    "required": "言語を選択してください。"
+                },
+                "theme": {
+                    "required": "テーマを選択してください。"
+                }
             }
         },
         "title": "設定",
@@ -1426,5 +1434,10 @@
             "settings": "設定",
             "sign_out": "ログアウト"
         }
+    },
+    "sign_out": {
+        "title": "サインアウト",
+        "desc": "本当にサインアウトしますか？ アカウントにアクセスするには再度サインインが必要です。",
+        "confirm": "サインアウト"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/ko.json b/web/src/locales/ko.json
index 531848a..85fe769 100644
--- a/web/src/locales/ko.json
+++ b/web/src/locales/ko.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "설정 업데이트"
+            },
+            "validation": {
+                "language": {
+                    "required": "언어를 선택해주세요."
+                },
+                "theme": {
+                    "required": "테마를 선택해주세요."
+                }
             }
         },
         "title": "설정",
@@ -1426,5 +1434,10 @@
             "settings": "설정",
             "sign_out": "로그아웃"
         }
+    },
+    "sign_out": {
+        "title": "로그아웃",
+        "desc": "로그아웃하시겠습니까? 계정에 접근하려면 다시 로그인해야 합니다.",
+        "confirm": "로그아웃"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/nl.json b/web/src/locales/nl.json
index 2f916b8..6103907 100644
--- a/web/src/locales/nl.json
+++ b/web/src/locales/nl.json
@@ -1434,5 +1434,10 @@
             "settings": "Instellingen",
             "sign_out": "Uitloggen"
         }
+    },
+    "sign_out": {
+        "title": "Uitloggen",
+        "desc": "Weet je zeker dat je wilt uitloggen? Je moet opnieuw inloggen om toegang te krijgen tot je account.",
+        "confirm": "Uitloggen"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/no.json b/web/src/locales/no.json
index 87465e4..48d7338 100644
--- a/web/src/locales/no.json
+++ b/web/src/locales/no.json
@@ -1434,5 +1434,10 @@
             "settings": "Innstillinger",
             "sign_out": "Logg ut"
         }
+    },
+    "sign_out": {
+        "title": "Logg ut",
+        "desc": "Er du sikker på at du vil logge ut? Du må logge inn igjen for å få tilgang til kontoen din.",
+        "confirm": "Logg ut"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/pl.json b/web/src/locales/pl.json
index ed75c9e..3e25459 100644
--- a/web/src/locales/pl.json
+++ b/web/src/locales/pl.json
@@ -741,6 +741,14 @@
       },
       "button": {
         "update": "Aktualizuj preferencje"
+      },
+      "validation": {
+        "language": {
+          "required": "Proszę wybrać język."
+        },
+        "theme": {
+          "required": "Proszę wybrać motyw."
+        }
       }
     },
     "title": "Ustawienia",
@@ -1426,5 +1434,10 @@
       "settings": "Ustawienia",
       "sign_out": "Wyloguj się"
     }
+  },
+  "sign_out": {
+    "title": "Wyloguj się",
+    "desc": "Czy na pewno chcesz się wylogować? Aby uzyskać dostęp do konta, będziesz musiał zalogować się ponownie.",
+    "confirm": "Wyloguj się"
   }
 }
\ No newline at end of file
diff --git a/web/src/locales/pt.json b/web/src/locales/pt.json
index 9cf58fa..4e709f3 100644
--- a/web/src/locales/pt.json
+++ b/web/src/locales/pt.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "Atualizar preferências"
+            },
+            "validation": {
+                "language": {
+                    "required": "Por favor, selecione um idioma."
+                },
+                "theme": {
+                    "required": "Por favor, selecione um tema."
+                }
             }
         },
         "title": "Configurações",
@@ -1426,5 +1434,10 @@
             "settings": "Configurações",
             "sign_out": "Sair"
         }
+    },
+    "sign_out": {
+        "title": "Sair",
+        "desc": "Tem certeza de que deseja sair? Você precisará entrar novamente para acessar sua conta.",
+        "confirm": "Sair"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/ru.json b/web/src/locales/ru.json
index a151aa9..956f2b2 100644
--- a/web/src/locales/ru.json
+++ b/web/src/locales/ru.json
@@ -741,6 +741,14 @@
             },
             "button": {
                 "update": "Обновить настройки"
+            },
+            "validation": {
+                "language": {
+                    "required": "Пожалуйста, выберите язык."
+                },
+                "theme": {
+                    "required": "Пожалуйста, выберите тему."
+                }
             }
         },
         "title": "Настройки",
@@ -1426,5 +1434,10 @@
             "settings": "Настройки",
             "sign_out": "Выйти"
         }
+    },
+    "sign_out": {
+        "title": "Выйти",
+        "desc": "Вы уверены, что хотите выйти? Вам нужно будет снова войти, чтобы получить доступ к аккаунту.",
+        "confirm": "Выйти"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/sv.json b/web/src/locales/sv.json
index 369f9de..4f22b5b 100644
--- a/web/src/locales/sv.json
+++ b/web/src/locales/sv.json
@@ -1434,5 +1434,10 @@
             "settings": "Inställningar",
             "sign_out": "Logga ut"
         }
+    },
+    "sign_out": {
+        "title": "Logga ut",
+        "desc": "Är du säker på att du vill logga ut? Du måste logga in igen för att få åtkomst till ditt konto.",
+        "confirm": "Logga ut"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/zh-tw.json b/web/src/locales/zh-tw.json
index 7a80520..284676e 100644
--- a/web/src/locales/zh-tw.json
+++ b/web/src/locales/zh-tw.json
@@ -398,6 +398,13 @@
         }
     },
     "search": {
+        "size": "大小",
+        "any": "不限",
+        "tiny": "很小（<15 KB）",
+        "small": "小（<2 MB）",
+        "medium": "中（<20 MB）",
+        "large": "大（≥20 MB）",
+        "sizeDescription": "大小指的是整封郵件的大小，包含附件。",
         "title": "搜尋",
         "searching": "正在搜尋，請稍候...",
         "noEmailsFound": "找不到任何郵件",
@@ -1427,5 +1434,10 @@
             "settings": "設定",
             "sign_out": "登出"
         }
+    },
+    "sign_out": {
+        "title": "登出",
+        "desc": "您確定要登出嗎？您需要重新登入才能存取帳戶。",
+        "confirm": "登出"
     }
 }
\ No newline at end of file
diff --git a/web/src/locales/zh.json b/web/src/locales/zh.json
index 03041ce..cc28add 100644
--- a/web/src/locales/zh.json
+++ b/web/src/locales/zh.json
@@ -1434,5 +1434,10 @@
       "settings": "设置",
       "sign_out": "退出登录"
     }
+  },
+  "sign_out": {
+    "title": "退出登录",
+    "desc": "您确定要退出登录吗？您需要重新登录才能访问账户。",
+    "confirm": "退出登录"
   }
 }
\ No newline at end of file