[Epic] Abstract `Our analytics` from users and move existing content to a new collection with same permissions

[luizarakaki]

Is your feature request related to a problem? Please describe. "Our analytics" is the root collection. All other collections are inside "Our analytics". To simplify navigation, we show all collections that belong to "Our analytics" in the same level of "Our analytics" in the sidebar.

This creates inconsistencies in the product and require special-casing.

Describe the solution you'd like

• [ ] Rename "Our analytics" to "All collections"
• [ ] Hide this collection from users. It will only appear in the permission panel to facilitate bulk-editing collection permissions.
• [ ] Create a new collection "Our analytics" inside "All collections". Move all content (except collections) from "All collections" to "Our analytics". Transfer "All collections" permissions to "Our analytics"
• [ ] This will impact serialization, we need to check with BEC

[iethree]

I'm not sure this is the right technical design for this, but we have a lot of unnecessary complexity arising out of the fake "our analytics" collection, and some inconsistent usage of it, especially its id (root vs null). Similar with the fiction of all personal collections.