Satellite release 0.3.0.
- Add UnixNmeaSource and GnssShareNmeaSource, enabling support for devices which use gnss-share, like Librem 5 (thanks devrtz)
- Allow specifying NmeaSource from the command line (thanks devrtz)
- Prefilter NMEA sentences before parsing, enabling support for devices which emit proprietary sentences, like Oneplus 6
- Display app menu on edge-overshot only on touchscreen devices
- Flatpak: Update to Gnome runtime 43 (thanks ferenc)