Implement tests for sharing project queries

[klaustopher]

Follow up to #15971 adding all the tests

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Tests

NOTE: Not being able to edit means you can make changes to the query but then it only offers the "Save as" function

• User Permissible service for non-project scoped resources are not tested yet
• Tests for the SharesController
• Feature Tests for the entire ProjectQuery sharing workflow
  • Adding a share and accessing the project query with the shared user (@aaron-contreras)
  • Adding a share with edit and changing with the shared user ( @aaron-contreras )
  • Making a query public and accessing it with another user (not allowed to edit)
  • Making a query public and adding a share with edit permission and then editing it as shared user
  • Making a query public and the owner not having the manage_public_project_queries and not being able to edit

Found while writing specs

• Re-work UserDetailsComponent to be entity specific (current work package specific details don't fit with a non-project scoped resource like a project query)
• As a user that has been shared a project list with edit permissions, I'm not able to edit the project query by clicking "Save"

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See: https://community.openproject.org/work_packages/55163

[aaron-contreras]

I second guessed whether using #model.editable? here as it's quite broad but would be consistent with the rest of checks in other places.