- Resolve all merge conflicts from main branch pull
- Fix CSS load order: global stylesheet before page-specific on all pages
- Add navigation.js to impressum.html and datenschutz.html
- Unify nav classes across all pages (nav-tab-links + button-small)
- Add footer styles to global stylesheet
- Remove duplicate landingpage.css (redundant with index.css)
- Fix duplicate head/body tags in event_detail.html
- Merge login.js: keep user auth logic + snackbar support
- Merge index-carousel.js: keep dots + responsive resize handling
- Added a new profile page (my_profil.html) for users to manage their events and personal information.
- Introduced a new CSS file (my_profil.css) for styling the profile page.
- Created a JavaScript file (my_profil.js) to handle profile data retrieval, event registration management, and form submission.
- Updated navigation logic (navigation.js) to dynamically display login/signup or event management links based on user authentication status.
- Enhanced event creation and detail pages to support user-specific actions (registration/unregistration).
- Improved login and signup processes to handle user data more robustly, including fallback user creation.
- Refactored event overview to show user-specific events and registrations.
- Added error handling and validation for user input in profile management.
