Minor bug and UI/text fixes

Previous fixes:
- Increased maximum minutes for Start Timer Shortcut to 1440 (24 hours)
- Some items were not aligning correctly in iOS 14 and watchOS 7
- Fixes a broken menu item in the watch settings
- Added a settings toggle for repeating notifications
- Fixes an issue where Today Widget wouldn't appear when starting a timer via Shortcuts
- Fixes the UI not refreshing when leaving and returning to the app in certain circumstances.