feat(Sidebar): interactions improvements

[gatzjames]

Highlights:

• Double click to rename works on the whole list-item surface
• Right click opens up the settings menu
• Rename from the settings menu makes the item editable
• Rename happens instantly (optimistic update)
• Drag 'n' drop: allow dragging an item from the whole list-item surface

Closes INS-3991, INS-4123, INS-4159
Closes #7667, #7659

[sentry]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ Error: Expected fetch controller: :r2f: app:///index.html View Issue

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