Better qt experience out of the box (suggestion)

[Carlos Pita]

(I'm unsure about the right package to report this to)

The qt experience out of the box is currently a mess. Short of proper Yaru integration, why not install qt5ct with consistent Ubuntu fonts and icons and Breeze by default? Every qt app will work just fine with Breeze. Currently we’re exposing a newcomer that barely knows that gtk and qt are things, let alone different things, to a difficult manual configuration process that’s not even well documented. That’s much worse than theme integration issues. A new user wanting to launch lyx or qbittorrent should just launch lyx or qbittorrent and have a pleasant experience. That’s not so hard:

* Preinstall kde-style-breeze and qt5ct
* Set ubuntu fonts, dialogs and icons in qt5ct
* Add
    export QT_QPA_PLATFORMTHEME=qt5ct
    export QT_AUTO_SCREEN_SCALE_FACTOR=1
  to the default profile.