KCMs in this repo have `mediacenter` in their form factor lists, which will cause them to show up on Plasma Bigscreen. This MR fixes that.
**Code changes:**
- [x] In `info`, `mobileshell`, `time`, `virtualkeyboard`, and `waydroidintegration`, remove mediacenter from form factors
I prefer create MR now to avoid biggest merge request.
It add minimalist implementation:
- First configuration of Waydroid
- Stop / Start Waydroid session
- Configure properties of Waydroid
- Display current ip of Waydroid
| Not installed | First initialization | initializing | SessionNotStarted | SessionStarting | SessionStarted |
| ------ | ------ | ------ | ------ | ------ | ------ |
|  |  |  |  |  |  |
Linked to https://invent.kde.org/teams/plasma-mobile/issues/-/issues/307
**Note for Reviewer**: In my local environment, i need to add manually the KAuth files otherwise polkit not recognize the implementation.
```
sudo cp ~/kde/usr/share/dbus-1/system-services/org.kde.plasma.mobileshell.waydroidhelper.service /usr/share/dbus-1/system-services/
sudo cp ~/kde/usr/share/dbus-1/system.d/org.kde.plasma.mobileshell.waydroidhelper.conf /usr/share/dbus-1/system.d/
sudo cp ~/kde/usr/share/polkit-1/actions/org.kde.plasma.mobileshell.waydroidhelper.policy /usr/share/polkit-1/actions/
```