Edit and/or delete things

[andresgsaravia]

I should be able to edit and/or delete several things.

Delete:

• [ ] Notebooks
• [ ] NotebookNotes
• [ ] DataConcepts' Revisions
• [ ] DataConcepts
• [ ] DataSets
• [ ] Projects (Maybe just leave the project, though I'm not sure how to handle projects without any authors)
• [ ] CollaborativeWritings
• [ ] Comments in a Collaborative Writing
• [ ] Bibliography items
• [ ] Comments in Bibliography items
• [ ] Outreach posts
• [ ] Images

Edit:

• [x] DataSets
• [x] ForumThreads
• [x] ForumComments
• [x] Project description
• [x] Code repositories' descriptions
• [x] Comments in a code repository
• [x] Comments in a notebook's note
• [x] Comments in Bibliography items
• [x] Comments in a Collaborative Writing
• [x] Images
• [x] Outreach posts