Keyboard-only navigation

[PaddiM8]

Some shortcuts for keyboard navigation would be really nice. Possibly vim inspired?

Examples:
Scroll up/down: j/k
Scroll to bottom in comments: G
Select rant: f to show number on rants, type number to select it. (numbers only show on rants within your view)
Open notifications: some easy to reach key like § or insert or n maybe?
Focus on comment input box: c
Send comment: esc then w or something
etc.