* Adds new accessibility slider for speech bubble text opacity.
Adds new accessibility slider for speech bubble background opacity.
Adds new Cvars to track speech bubble text and background opacity settings.
* Adds a separate option slider for the opacity of the speaker's name on speech bubbles.
* Changes text and speaker default opacity to 100%, as it was before.
* Apply suggestions from code review
---------
Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>
263f915671