feat: create file from template

[kulmann]

Description

Adding a new file action for creating documents from templates via app provider (hence placing the action in the external app).

Related Issue

• Fixes Support Only Office template files  #11750

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)
• Technical debt
• Tests
• Documentation
• Maintenance (e.g. dependency updates or tooling)

Open tasks:

• re-prioritize file actions: create from template needs to be first action (on left click and in right-click context menu)
• Closing the created document needs to navigate to the personal space root, not to the location of the template file
• Changelog
• Error handling during handler execution
• Test coverage

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[JammingBen]

One bug that we found: when opening a template file in a project space while having the sidebar open, the shares panel still shows the project space members, despite the new file being in the personal space. This happens because the ancestors and therefore the loaded space members don't get cleared. This is a general problem with the app wrapper.

[JammingBen]

Few nitpicks, rest is awesome!

[sonarcloud]

Quality Gate passed

Issues
0 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