Add keyboard shortcuts for ‘Open a Project’ and other main menu elements
Opening another project when one is already open is likely something many people use a lot - probably the reason why it's prominently displayed in the menu and even in the desktop file. I'd love to see a keyboard shortcut for it, as it's literally the only thing I regularly have to use the cursor for atm.
I'll happily provide a MR introducing a new shortcut section with such shortcuts if this is deemed acceptable.
Related: #1043 (closed)