Fix media browser panel title + selection header color

[spacegaier]

Breaking change

Proposed change

Adds proper translation key for the media browser panel. This is related to the core PR home-assistant/core#39720 that ensures the proper key is used for the panel title.

This PR also fixes the wrong color of the heading of the "Choose Player" dialog (was using black also in dark mode).

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io