### Improvements

- You can now choose whether you want to receive notifications about resources.
- Nicknames are now displayed correctly in the app.
- The app now automatically updates groups, bookings, and agendas in the background.
- Calendars can now be subscribed to from the app in external calendars (e.g., Google Calendar, System Calendar app, etc.).
- When you open Resources for the first time, you will now receive a brief introduction.

### Fixed Bugs

- The number of unread messages is displayed correctly in the chat overview again.
- Push notifications for posts lead to the post, even if the app was previously closed.
- After sending an image from another app, you are successfully redirected to the chat.
- The title bar is displayed again when registering for a group.