feat(CommunitySettings): Implement UI for`edit`, `duplicate` and `remove` actions in community permissions page
- Enabled `duplicate` action (mocked).
- Enabled `delete` action (mocked) and added / updated navigations in case all permissions are removed.
- Added delete confirmation popup.
- Enabled `edit` action (mocked) where changes are detected and the `dirty changes toast` appears properly.
Closes#8581
- Created page and added editor for specific page.
- Created needed mocked models.
- Added background in permission related pages to ensure correct dark mode visualization.