Add option to copy system info into clipboard

[spacegaier]

Draft until #7373 is merged.

Breaking change

Proposed change

New icon button that copies the system data (the whole content of the card) into the clipboard.

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 Add copy to clipboard button to System Health card in Info panel #7253
• 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

[spacegaier]

@bramkragten Is now ready, since prerequisite PR has been merged.