Fix: inline editing mode for Block List Editor

[nielslyngsoe]

Fixes umbraco/Umbraco-CMS#16298
Fixes umbraco/Umbraco-CMS#16777

This PR includes:

• Making the Inline Editing mode for Block List Editor work again.
• As well making the styling and interaction(use keyboard to open block) more appropriate.
• Use ContentType Icon for both Inline and not Inline mode.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (minor updates related to the tooling or maintenance of the repository, does not impact compiled assets)

Motivation and context

How to test?

Screenshots (if appropriate)

Checklist

• If my change requires a change to the documentation, I have updated the documentation in this pull request.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[leekelleher]

Tested out, working great! 🚀

[sonarcloud]

Quality Gate passed

Issues
6 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[Nuklon]

This isn't working correctly as UFM isn't rendered.

[bganser]

This isn't working correctly as UFM isn't rendered.

I can confirm that UFM isn't working properly when inline editing is activated. Tested with a property with the alias "headline":
{=headline} was rendered in Blocklist as {=headline}.

And live editing mode seems also not to be working (no matter if inline editing is activated or not).