Regex escape and GUI improvements

Python has changed the the interpretation of esc (aka ) in strings - which have been used in regex expressions
GTK4 (and wayland) needed some more hints.

VideoCut pyQT6

Switch to pyQT6 + MPV 0.38

Fix PIL to QTImage conversion

Fixed PIL to QTImage conversion

Audio mute function

• Fix for target extension based on the codecs
• Added audio mute - idea by user

Change ffmpeg build & cutter

Dynamic binary build for arch an debian. Retained individual versions for manual install. Refactored cutter & tools

Update MPV backend

Updating to the latest mpv.py release, Audio stuff (+no audio)

Remux short videos, MPV audio support

Removed a constraint that prevented audio on very short clips.
Replaced the "mpv audio auto selection" with the first valid audio stream

Improved logging

Changed and fixed rotation logging + added an updated remux version for ffmpeg3

OpenGL /wayland support

Introducing OpenGL video widget

Av1 and VC1 improvments

Full Changelog: 2.0.3...2.0.4