Support multiple sources using flavours #10
Description
Already started: https://github.com/JakeSteam/APODWallpaper/tree/feature/multi-endpoint, first alternative will be Moon Minute Monday.
Tasks:
- Decouple all code / endpoints / parsing from APOD
- Support XML endpoints (for RSS)
- Improve XML parsing
- Support non-daily checking
- Add new icon
- Update all strings, including app name