Sway-input-config

- Fix spelling errors
- Fix metainfo

- Port to Qt6/PyQt6
- Redesign pointer and touchpad pages
- Added initial Tablet support
- Scroll method "on_button_down" is moved to Pointer page (as it works only with trackpoints)
- Added [rotation angle](https://wayland.freedesktop.org/libinput/doc/latest/configuration.html#rotation) option (since Sway 1.9)
- Added [scroll button lock](https://wayland.freedesktop.org/libinput/doc/latest/scrolling.html#on-button-scrolling) option (since Sway 1.9)
- Added scroll button list
- Updated translations generator
- Many small fixes

Display error message when running on non-Sway environment

Use 128x128 icon

Fix icon size

* Fixed minor issues
* Added io.github.Sunderland93.appdata.xml (preparation for Flatpak version)
* Icon moved to /usr/share/icons
* Adapted for Pip