"PyQt6 vs PySide6": Resources and uic version

Two remarks regarding PyQt6 vs PySide6. Many thanks for the article, that was very informative!

For updating my project I was missing the pyrcc tool; this SO answer was very useful in solving this:

https://stackoverflow.com/a/66104738/5794048

This are the relevant changes in the makefile I'm using for this purpose:
```
+rccTool := $(shell qmake6 -query QT_HOST_LIBEXECS)/rcc

[...]

 res_%.py: %.qrc
-       pyrcc5 -o $@ $<
+       $(rccTool) --generator python -o $@ $<
+       sed -i '0,/PySide6/s//PyQt6/' $@
```
In section "Converting UI files to Python", pyuic5 is mentioned where it should probably read pyuic6.

pythonguis / feedback