Switch to Qt QML #73
Description
### Prerequisite
- [x] Running lsGUI in Germany (Requirement met on 2023-03-12)
To get a newer user interface and more design freedom, consider switching to Qt qml.
### Tasks
- [ ] Investigate Qt QML
- [ ] Create design mockups
- [ ] Approve mockups
- [ ] Create QML files
- [ ] Implement logic
- [ ] Ship with Qt QML
Example of a qml GUI:
