fix(desktop): call the release notes page What's new (#59152)

Author: Hona

packages/gui-extensions/src/updater/i18n/en.ts

@@ -29,7 +29,7 @@ export default {
   "releaseNotes.action.next": "Next",
   "releaseNotes.action.hideFuture": "Don't show these in the future",
   "releaseNotes.media.alt": "Release preview",
-  "beta.title": "What's new in beta",
+  "beta.title": "What's new",
   "beta.since.one": "Since build {{build}} · {{count}} change",
   "beta.since.other": "Since build {{build}} · {{count}} changes",
   "beta.added": "New",