refactor widget-only integrations

apps/nextjs/src/components/integration/integration-grid-shared.ts

@@ -48,10 +48,8 @@ export const categoryTranslationKeys: Record<string, string> = {
   search: "integration.category.search",
   mediaTranscoding: "integration.category.mediaTranscoding",
   networkController: "integration.category.networkController",
-  releasesProvider: "integration.category.releasesProvider",
   notifications: "integration.category.notifications",
   firewall: "integration.category.firewall",
-  timetable: "integration.category.timetable",
   photoService: "integration.category.photoService",
   notes: "integration.category.notes",
   mediaMonitoring: "integration.category.mediaMonitoring",