feat(cli): rewrite presentation player

[jeertmans]

This is a complete rewrite of the manim-slides present player with two main objectives:

• make it run as fast as possible, by using already existing tools from PySide6, and minimizing the amount of Python code;
• reducing the code complexity, for better maintainability.

Read the changelog file for more details.

[codecov]

Codecov Report

Patch coverage: 73.20% and project coverage change: +4.28% 🎉

Comparison is base (b321161) 63.25% compared to head (d0f0d11) 67.53%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #243      +/-   ##
==========================================
+ Coverage   63.25%   67.53%   +4.28%     
==========================================
  Files          15       16       +1     
  Lines        1682     1491     -191     
==========================================
- Hits         1064     1007      -57     
+ Misses        618      484     -134     

Files Changed	Coverage Δ
manim_slides/wizard.py	37.39% <0.00%> (ø)
manim_slides/present/__init__.py	61.60% <61.60%> (ø)
manim_slides/present/player.py	76.62% <76.62%> (ø)
manim_slides/config.py	83.91% <88.37%> (-0.59%)	⬇️
manim_slides/convert.py	74.19% <100.00%> (ø)
manim_slides/slide.py	85.38% <100.00%> (+0.49%)	⬆️
manim_slides/utils.py	91.89% <100.00%> (ø)

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