Improve ease of use when assigning users to cards - mouse dragging, hotkeys (spacebar), custom rightclick menu

Which part of the project does this feature apply to?

Frontend

What would you like?

I am evaluating switching over from Trello and am missing some convenience and ease of use shortcuts I'm used to. In particular:

-Pressing spacebar while mouse-overing a card to assign myself to it. -Dragging user icons from the top-left to a card to assign them -Right-clicking on a card to open its "edit" menu (the pencil icon on the right) instead of a generic browser right-click menu.

Why is this needed?

This will help people switching over from Trello and other similar applications to use their already-established muscle memory and workflows, and will improve ease of use and QoL for all users.

Other information

I tested for these features on the demo site. It doesn't specify hosted version, but I assume it's the latest one?