Migrate away from PyQt5 #1713
Description
Is your feature request related to a problem? Please describe.
PyQt5 is not supported anymore and causes more and more issues, slowing down the development.
Describe the solution you'd like
Need to migrate away from PyQt5.
Describe alternatives you've considered
Different options available:
- PyQt6
- PySide6
- QtPy
Additional context
Need to keep in mind how we manage existing plugins.