Do not use "media_play_pause" but atomic services instead

[spacegaier]

Breaking change

Proposed change

Currently we are using the service media_play_pause to start media playback. Since there are however media players that do not support pausing, they do not have that service implemented and therefore the playback cannot be started.

With this PR we now use the atomic media_play instead and pause via media_pause if supported by the player.

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 Mediaplayer card sending "media_play_pause" instead of "media_play" #8672
• This PR is related to issue or discussion:
• 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