Switch to ModemManager
Meta-task for ModemManager switch
- [x] Port [SpaceBar](https://invent.kde.org/plasma-mobile/spacebar) https://invent.kde.org/plasma-mobile/spacebar/-/merge_requests/48
- [x] Port [Plasma Dialer](https://invent.kde.org/plasma-mobile/plasma-dialer): https://invent.kde.org/plasma-mobile/plasma-dialer/-/merge_requests/71
- [x] New mobile broadband kcm: ~~https://invent.kde.org/plasma/plasma-nm/-/merge_requests/33~~ https://invent.kde.org/plasma-mobile/plasma-settings/-/merge_requests/92
- [x] SIM unlocking: plasma-nm has a functional PIN dialog. https://invent.kde.org/plasma/plasma-nm/-/merge_requests/66 makes it a tiny bit more mobile friendly but eventually we want a mobile rewrite of it
- [x] Plasma Shell top indicators (may need to create QML bindings in modemmanager-qt?) https://invent.kde.org/plasma/plasma-phone-components/-/merge_requests/176
```
sudo pacman -S modemmanager-pp
sudo systemctl stop ofono
sudo systemctl disable ofono
sudo systemctl enable ModemManager
sudo systemctl start ModemManager
```
@bshah
issue