Asciinema a11y

[karesztrk]

Describe the bug
Asciinema Player accessibility issues

To Reproduce
Steps to reproduce the behavior:

1. Create a new cast
2. Add the cast to the web player
3. Install axe DevTools
4. Click Full Page Scan

Expected behavior
Violation free player

Versions:
System:
OS: Linux 6.15 Garuda Linux
CPU: (12) x64 Intel(R) Core(TM) i7-10850H CPU @ 2.70GHz
Memory: 16.39 GB / 30.95 GB
Container: Yes
Shell: 4.0.2 - /bin/fish
asciinema player 3.10.0