Update the qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. documentation.

[tnais]

First of all, kudos!

[The Please describe the problem would like to solve part]
The solution you give did not solve my problem. I run my box with XFCE on ubuntu mantic and the library you suggest was already installed and updated.

[The Describe the solution you'd like part]
I solved my problem applying the solution given in #https://forum.qt.io/topic/127696/qt-qpa-plugin-could-not-load-the-qt-platform-plugin-xcb-in-even-though-it-was-found/27 to be precise in this reply #https://forum.qt.io/post/683889 .

Thank you for keeping the project alive.

That little programmable keyboard is very useful. Last but not least, it turns on and off the light in the room, now thanks to your code.