Ctrl+U and Ctrl+D for page up/down

[juancampa]

Is your feature request related to a problem? Please describe.
Some keyboards (like mine) don't really have PgUp/PgDown. It would be great to have another keybinding to quickly scroll up and down the Diff pane.

Describe the solution you'd like

New keybindings:

• Ctrl+U to scroll up
• Ctrl+D to scroll down

These are the keybindings for vi/vim so a lot of folks should be familiarized with them.

[extrawurst]

Hi @juancampa thanks for your interest in gitui, I will never get used to those vi bindings, but I guess I am no benchmark here :D

one alternative I could imagine is:

Event::Key(KeyEvent { code: Down, modifiers: SHIFT | CONTROL })
Event::Key(KeyEvent { code: Up, modifiers: SHIFT | CONTROL })

this would be close the already supported shift+up as a home alternative

for vi fans this of course can be modified with #57

[hasufell]

I think vi bindings have no place here. The other navigational keys are arrow keys. So the natural choice should be PageUp/PageDown.