Hotkey-Toggleable sidebar in canvas

Use case or problem

- Hotkey-Toggleable sidebar for when a particular card/note is highlighted to show the full text.**

Proposed solution

Hotkey, e.g. ⌘5 when a note/card is highlighted in the canvas view to open a sidebar with the full note text.

Current workaround (optional)

Mindnode - Video of how all of this works.

Related feature requests (optional)