[web] Add action: "Duplicate" Space

[tbsbdr]

Description

User Stories

• As a user I want a context menu option to duplicate a space so that I don't need to do copy & paste for the content and manual recreation for the space info.

Value

• foster usage of spaces
• improve usability
• enhance productivity

Acceptance Criteria

• Add new Context Menu Option "Duplicate" (folders-line)
• Option is available for Spaces (each: single or multiple)
• Action requires permission to create new spaces + read-permission on the to be duplicated space
• position: below "Rename"
• after clicking on "duplicate", the selected space gets duplicated with a space title like we do it on "keep both" in conflict resolution (i.e. duplicate of "Mars Mission" becomes "Mars Mission (1)")
• duplicate space title, subtitle, description, image and file/folder content, i.e. all metadata and data, but:
  • do not re-invite the space members of the original space
  • do not create link shares like in the original space
  • do not re-create metadata on files (like tags or shares), i.e. do a webdav copy operation
• duplication is not available in the admin-settings app. only in the project spaces overview and inside the root of a space.
• technical detail: use loadingService for the requests because the operation might take long...

Organizational

Please track times

Definition of ready

[ ] everybody needs to understand the value written in the user story
[ ] acceptance criteria has to be defined
[ ] all dependencies of the user story need to be identified
[ ] feature should be seen from an end user perspective
[ ] user story has to be estimated
[ ] story points need to be less then 20

Definition of done

• Functional requirements
  [ ] functionality described in the user story works
  [ ] acceptance criteria are fulfilled
• Quality
  [ ] code review happened
  [ ] CI is green
  [ ] critical code received unit tests by the developer
  [ ] automated tests passed (if automated tests are not available, this test needs to be created and passed
• Non-functional requirements
  [ ] no sonar cloud issues

Visuals

[dschmidt]

What exactly is duplicating a space? All members and content copied as well?

[AlexAndBear]

I don't think that's possible, I guess same as with copy paste (that means just raw content, no meta data).

[kulmann]

Updated issue description. We need everything but members/shares. So basically the space skeleton (title, subtitle, description, image) and a webdav copy of the files & folders (no file metadata like tags or shares).

[kulmann]

Regarding the icon, see #9898 (comment) ff for discussion.