devex: dead locales cleanup + i18n inspect tool (#5313)

* chore: remove old locales + just enable all locales now

* feat: debug panel for i18n + tooltips

* feat: dedupe

* fix: debugger for app

* fix: crowdin code mismatches

* fix: lint

apps/app-frontend/src/App.vue

@@ -32,6 +32,7 @@ import {
 	ButtonStyled,
 	commonMessages,
 	defineMessages,
+	I18nDebugPanel,
 	NewsArticleCard,
 	NotificationPanel,
 	OverflowMenu,
@@ -1128,6 +1129,7 @@ provideAppUpdateDownloadProgress(appUpdateDownload)
 		</div>
 	</div>
 	<URLConfirmModal ref="urlModal" />
+	<I18nDebugPanel />
 	<NotificationPanel has-sidebar />
 	<ErrorModal ref="errorModal" />
 	<ModInstallModal ref="modInstallModal" />