ChurchTools

### Improvements  * In older versions of the app, a notification appears indicating that an update is available. * You are now shown the app's features before you can open ChurchTools Web. * Booking requests can be deleted if you have permission to edit them or if they are your own. ### Fixed Bugs * Appointment templates without images now work again when creating appointments. * A bug that prevented appointments from loading has been fixed. * The search and profile buttons now work correctly again on the iPhone XS. * In the "My Bookings" widget, the entries are now spaced correctly from the tabs. * An empty wiki page no longer causes an error. * When sending images, the send buttons are visible again. * If you have no internet connection or a poor connection and try to send a chat message, an error message appears. * Links to the wiki that contain parentheses now redirect just as they do in the web wiki. * A gray bar no longer flickers at the bottom of the screen when opening or closing BottomSheet menus. * When replying to very old messages, the original message is now reloaded. * The correct original message is once again displayed for chat replies. * When sharing files (e.g., PDFs) in a chat, the file is now uploaded in its original format instead of as a generic .bin file. The original filename is retained instead of being replaced by a random name. * In chat, words ending in "..." are no longer displayed as links (underlined).