Information architecture, web (phase III)

### Phase III: Value adds: Stretch goals for deferred value adds and new opportunities from the project

- \[x\] https://github.com/vector-im/element-web/issues/19716

* 3.0: Iterate on IA1&2 based on metrics, testing and research.
* 3.1: Multiple notification dots
* Apply better logic when rooms or DMs exist in multiple places, to avoid dot fatigue
* Consider only decorating the open Space \(and Home\)
* Consider only decorating duplicate dots when hovering the Space panel
* Consider only decorating Home & the first space in the Space panel, expecting users to arrange Spaces
* 3.2: Drag & Drop
* Explore dragging room list sections from Home to the Space panel to pin them
* Explore dragging subspaces from the room list to the Space panel to pin them
* Explore dragging rooms to other Spaces to add them to a Space
* Show a tooltip when dragging over if the user doesn't have permission.
* Explore dragging rooms from the room list to the Space panel to create a new Space
* 3.3: Home
* Consider adding a 'tips' view with prominent first user tips
* Consider tasks informed by persona disclosure during sign up
* Consider adding a 'Discover' view to aid room & space discovery
* Consider adding an 'Activity' view to aid catching up on unreads