Improve and update FAQ entry for unique ID

[spacegaier]

Proposed change

Added screenshot + more context info and links.

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: Convert customize to LitElement + "real" entity picker + option to directly jump to entity frontend#8180 Entity registry: Translate advanced section + direct link to entity customization frontend#8181
• Link to parent pull request in the Brands repository:
• This PR fixes or closes issue:

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.

[frenck]

Ideally, this should be moved into a more-info page and linked from the UI in the dialog that shows this message.

[spacegaier]

Ideally, this should be moved into a more-info page and linked from the UI in the dialog that shows this message.

The UI dialog is pointing to exactly this FAQ page currently. That is why I updated it, since many people end up there.

What do you mean by "more-info page"?

[frenck]

Awesome, thanks @spacegaier 👍