Add clipboard button

[KTibow]

Proposed change

This adds a button next to the entity ID that copies the ID to the clipboard, so it's easier to use it.

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

Make sure advanced mode is turned on.

Additional information

#7607 got into a bad state (in terms of conflicts), so this is basically a duplicate.

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion: Show button to copy entity ID in developer tools states tab #7599
• 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