feat(auth): implement password reset functionality

- Added new endpoints for requesting and resetting passwords in the authController.
- Updated User model to include resetToken and resetTokenExpires fields for managing password reset requests.
- Enhanced emailService to send password reset emails with secure links.
- Updated frontend routes and views to support password reset flow, including new ForgotPassword and ResetPassword components.
- Improved internationalization files with new translation keys for password reset messages across multiple languages.

backend/routes/authRoutes.js

@@ -1,11 +1,13 @@
 import express from 'express';
-import { registerUser, activate, loginUser, logoutUser } from '../controllers/authController.js';
+import { registerUser, activate, loginUser, logoutUser, forgotPassword, resetUserPassword } from '../controllers/authController.js';
 
 const router = express.Router();
 
 router.post('/register', registerUser);
 router.get('/activate/:activationCode', activate);
 router.post('/login', loginUser);
-router.post('/logout', logoutUser); // Ändere GET zu POST
+router.post('/logout', logoutUser);
+router.post('/forgot-password', forgotPassword);
+router.post('/reset-password', resetUserPassword);
 
 export default router;