fix: replace hardcoded "52 tools" with "50+" across all copy

Future-proofs marketing text so it doesn't need updating every time
a tool is added.

packages/shared/src/i18n/en.ts

@@ -1611,7 +1611,7 @@ export const en = {
       heading: "About",
       appName: "SnapOtter",
       appDescription:
-        "A self-hosted, privacy-first image processing suite with 52 tools. Resize, compress, convert, watermark, and automate your image workflows without sending data to the cloud.",
+        "A self-hosted, privacy-first image processing suite with 50+ tools. Resize, compress, convert, watermark, and automate your image workflows without sending data to the cloud.",
       versionLabel: "Version:",
       linksHeading: "Links",
       githubLink: "GitHub Repository",
@@ -1654,7 +1654,7 @@ export const en = {
       "No limits. No hidden caps.",
       "Works fully offline.",
       "Unlimited batch processing.",
-      "52 image tools.",
+      "50+ image tools.",
       "16 AI models. Your hardware.",
       "Lightning fast. Built on Sharp.",
       "Air-gapped ready.",

packages/shared/src/i18n/nl.ts

@@ -1667,7 +1667,7 @@ export const nl: TranslationKeys = {
       heading: "Over",
       appName: "SnapOtter",
       appDescription:
-        "Een zelf-gehoste, privacy-first beeldverwerkingssuite met 52 tools. Schalen, comprimeren, converteren, watermerken en je beeldworkflows automatiseren zonder data naar de cloud te sturen.",
+        "Een zelf-gehoste, privacy-first beeldverwerkingssuite met 50+ tools. Schalen, comprimeren, converteren, watermerken en je beeldworkflows automatiseren zonder data naar de cloud te sturen.",
       versionLabel: "Versie:",
       linksHeading: "Links",
       githubLink: "GitHub-repository",