Internal changes and bug fixes.

Minor bug fixes and improvements.

New feature: change the starting weekday used by Timescape, to Monday, Sunday, or whatever day takes your fancy!

A foundational update that fixes bugs and improves performance.

- Fixes a bug where events would rarely not been shown just after being added to an empty day.

- Greatly improved performance when refreshing the year grid - Correctly show loading spinner when refreshing the grid for a long time

New feature: double tap on the selected today to return to today!

- Increased the size of non-all-day events on the grid - Added an option to settings to override system-level dark mode - Bug fixes