add svelte UI

ui/components/input/SearchInput.svelte

@@ -0,0 +1,64 @@
+<script>
+  import { createEventDispatcher } from "svelte";
+  import { Search } from "lucide-svelte";
+
+  export let value = "";
+  export let placeholder = "Search";
+
+  const dispatch = createEventDispatcher();
+
+  function onInput(e) {
+    dispatch("input", e.target.value);
+  }
+</script>
+
+<div class="search-input">
+  <span class="search-icon">
+    <Search size="0.875rem" />
+  </span>
+  <input type="text" {placeholder} {value} on:input={onInput} />
+</div>
+
+<style>
+  .search-input {
+    position: relative;
+    display: flex;
+    align-items: center;
+  }
+
+  .search-icon {
+    position: absolute;
+    left: 0.625rem;
+    color: var(--text-muted);
+    pointer-events: none;
+    margin-top: 0.2rem;
+  }
+
+  input {
+    width: 100%;
+    padding: 0.375rem 0.625rem 0.375rem 1.875rem;
+    border-radius: 0.375rem;
+    border: 1px solid var(--background-primary);
+    background: var(--background-primary);
+    color: var(--text-normal);
+    font-size: 0.8125rem;
+    outline: none;
+    box-shadow: none;
+  }
+
+  input:hover {
+    background: var(--background-modifier-form-field);
+  }
+
+  input::placeholder {
+    color: var(--text-muted);
+  }
+
+  input:focus {
+    border-color: var(--interactive-accent);
+  }
+
+  input:focus:hover {
+    background: var(--background-primary);
+  }
+</style>