Bump @fullcalendar to version 6.1.1

[steverep]

Proposed change

This is meant to replace #14914 from dependabot. After skimming dependabot issues, it seems this is failing because dependabot cannot yet handle a jump from no peer dependencies to having them. As a result, it seems to miss the fact that @fullcalendar/* plugins now all have @fullcalendar/core as a peer dependency. So the whole scope needs to update to v6 at once, plus the following:

• According to the v6 release notes, manual style imports are no longer needed and CSS is injected via the JS, so I removed those occurences
• Removed the internal @fullcalendar/common package (no v6)
• Changed a couple occurrences of importing memoize to use memoize-one package instead (if these were purposely needed from fullcalendar, then they need to come from @fullcalendar/core/internal now)

Functionality seems fine but I admittedly did not even try to inspect for style differences. 😉 🦯

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 #
• 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

[bramkragten]

Checked the styling, and that is not quite there yet... Will look into it... they inject the styles at the top level (head) and as we use shadow dom that doesnt have effect there

[bramkragten]

Ugh...

https://github.com/fullcalendar/fullcalendar/blob/main/packages/core/src/styleUtils.ts

They should let you provide an element to apply the styles to...

[bramkragten]

fullcalendar/fullcalendar#7118

[steverep]

Yeah, I was afraid of that… Should be a simple fix if they respond quickly though.

There's also a new Web component package from them, which I didn't look into yet. It may, or may not be useful to us.

[bramkragten]

Their web component doesn't use shadow DOM...

[steverep]

Upgraded to get their fix in 6.1, but again I'll defer to you on reviewing the style.

[bramkragten]

Looks good!