Shortcut to focus sidebar/main pane

the ability to navigate around the main pane and sidebar with keyboard shortcuts.

additionally would be awesome to be able to navigate up/down sidebar pages with a shortcut (jumping to each page instead of down arrowing through all the content)

This is a great suggestion which I want to support :+1:
(unfortunately I ran out of votes).

Being able to switch focus back and forth between the main page and the sidebar would be huge for me.