Changes:
- Support for downloading themes from Themezer, a new custom themes sharing website.
- Theme downloading can support other hosts as long as they implement the API, more details have been added in the wiki
- Support for the currently china-only 10.1.1 firmware
- Fixed the random crashes when installing themes
- Updated all the built-in layouts
- Drag and drop support for selecting files in the theme injector
- Many changes under the hood to improve user experience™️