1.1 Release!

After the unnecessarily long delay (which I feel very sorry about...), version 1.1 is finally here!

This version implemented a few more new escape sequences and corrected some incomplete implementations of some sequences.

On the compatibility side, we dropped Qt.py for qtpy for integration with PySide6 and PyQt6.

I'm still on my way to support Vim in termqt. I guess I will leave this grand task to the next release.

Thank @wyzula-jan for his contribution to this version!