Implement church career management features

- Added endpoints for church career functionalities including overview, available positions, application submission, and application decision-making.
- Enhanced the FalukantController to handle church-related requests.
- Updated associations and models to support church office types and requirements.
- Integrated new routes in the falukantRouter for church career operations.
- Implemented service methods for managing church applications and checking church career status.
- Updated frontend components to display current positions, available positions, and manage applications with appropriate UI elements and loading states.
- Localized new church-related strings in both English and German.

backend/models/index.js

@@ -113,6 +113,12 @@ import Vote from './falukant/data/vote.js';
 import ElectionResult from './falukant/data/election_result.js';
 import PoliticalOfficeHistory from './falukant/log/political_office_history.js';
 import ElectionHistory from './falukant/log/election_history.js';
+
+// — Kirchliche Ämter (Church) —
+import ChurchOfficeType from './falukant/type/church_office_type.js';
+import ChurchOfficeRequirement from './falukant/predefine/church_office_requirement.js';
+import ChurchOffice from './falukant/data/church_office.js';
+import ChurchApplication from './falukant/data/church_application.js';
 import UndergroundType from './falukant/type/underground.js';
 import Underground from './falukant/data/underground.js';
 import VehicleType from './falukant/type/vehicle.js';
@@ -242,6 +248,10 @@ const models = {
   ElectionResult,
   PoliticalOfficeHistory,
   ElectionHistory,
+  ChurchOfficeType,
+  ChurchOfficeRequirement,
+  ChurchOffice,
+  ChurchApplication,
   UndergroundType,
   Underground,
   WeatherType,