Improve documentation of Android TV Remote

[tronikos]

Proposed change

• Add alternatives for launching YouTube
• Mention the integration doesn't work with Fire TV devices since they are missing a necessary Google service.
• Add YAML in the collapsible heading since again a couple of users on reddit missed it. Hopefully others can find it by searching for YAML in this page. An alternative would be to stop collapsing it but the YAML code is rather long.
• Add known issues and suggestions to resolve them.

Type of change

• Spelling, grammar or other readability improvements (current branch).
• Adjusted missing or incorrect information in the current documentation (current branch).
• Added documentation for a new integration I'm adding to Home Assistant (next branch).
  • I've opened up a PR to add logo's and icons in Brands repository.
• Added documentation for a new feature I'm adding to Home Assistant (next branch).
• Removed stale or deprecated documentation.

Additional information

• Link to parent pull request in the codebase:
• Link to parent pull request in the Brands repository:
• This PR fixes or closes issue: fixes More Examples to open Apps #27267, fixes Sample code dont work #27279, closes Android TV Remote & Fire TV : Failed to connect core#92656, closes Android TV Remote constantly disconnecting / reconnecting core#92596, closes Netflix doesn't work core#92659, closes Android TV remote keeps requesting new paring again and again core#92795, closes Does not connect to Shield in another VLAN that is reachable over pings and ADB core#93991

Checklist

• This PR uses the correct branch, based on one of the following:
  • I made a change to the existing documentation and used the current branch.
  • I made a change that is related to an upcoming version of Home Assistant and used the next branch.
• The documentation follows the Home Assistant documentation standards.

[home-assistant]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

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[Drafteed]

It looks like this PR is finally lost. @frenck, can we merge these helpful docs changes?

[tronikos]

Could you please review and merge this soon? I want to delete my fork and start over because I've messed up other branches, specifically #28064 and https://github.com/tronikos/home-assistant.io/pull/2