HabitCat: simple habit tracker

Sep 15, 2020

- Dark/Night mode
- New vibrant color palette
- Add Russian translations
- Add option to chose a habit start date
- Fix a bug where the left menu would be visible a few moment at startup
- Fix some flickering while data are loading at startup
- Fix a visual glitch causing scroll bars to be in the middle of the screen on some specific devices
- Other minor bug fixes