Use component to ensure relative-time in Glance card gets updated

[spacegaier]

Breaking change

Proposed change

Previously, only a one time static value was shown, but no actual rendering updates took place. Now the proper component is used to ensure that the relative time rendering actually gets correctly updated.

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 Fix show_last_changed in Glance card #10665
• 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