Feat: #751 show all workspaces to admin

[marikaris]

New PR because old one got tangled up with the docs PR for some reason.

how to test:

• explain here what to do to test this (or point to unit tests)

todo:

• Endpoint for displaying workspaces of all users
• Save new workspaces in directory with user email, so we know which workspaces belong to what user
• Upon saving workspace, check if workspaces available saved by uuid, if so copy them to folder with email address
• Delete endpoint for workspaces from admin perspective
• Load workspaces from new bucket directory
• UI for displaying and deleting workspaces
• Tests
• See if it's possible to add file to new bucket if contents have been migrated

[marikaris]

Ran into this bug:
#821

The delete workspace endpoint has the same problem. I think this bug needs to be fixed in this PR as well.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
84.6% Coverage on New Code
0.0% Duplication on New Code

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