Review: use new reviewables endpoint for review creation

[Innders]

Description of changes

"Create new session" and "Add to session" now use the new reviewables endpoint instead of relying on the review addon actions.

Before the changes, we would use different actions provided by the review session to get the latest reviewables of a folder/task. Now it uses a dedicated endpoint ynput/ayon-backend#994 (review)

Validation

• Always max 1 version per selected entity.
• 3 folders = 3 latest versions, from each folder.
• If the latest version does not have a reviewable then it is skipped. 5 tasks = 3 versions (with reviewables).
• Needs to work for folders, tasks, versions.

Testing

1. Go to overview page
2. Select some folders that have the play icon in the thumbnail.
3. Right click review / create new session
4. The latest version from each folder should be in the new list. If the version does NOT have a reviewable, it is skipped.
5. Repeat for Add to session
6. Repeat for each entity type folder, task, version`.
7. Test on each page overview, task progress, products, lists, review