feat(controls): added half page scroll up and down

[suzana2314]

Added half page scroll up and down navigation, mimicking Vim's Ctrl+U and Ctrl+D behaviour.

These keybinds can be changed in the config under keybinds.navigation.scroll_up and keybinds.navigation.scroll_down respectively.

I just reused the logic that was already there for standard navigation but added a new steps arg.

Let me know if there is anything wrong!

[MattiaPun]

Hi, good PR so far, just update the naming and add the keybinds to the helpViewContent function in view.go. Please let me know if you have any questions.

[suzana2314]

Hi, good PR so far, just update the naming and add the keybinds to the helpViewContent function in view.go. Please let me know if you have any questions.

Hey thanks for the heads up.

In case of the help view text would it be alright to be Go half page up to keep it consistent with the other navigation descriptions or do you prefer just Scroll half page up

For the config I renamed it to: scroll_half_page_up is this alright?

[MattiaPun]

Yes, the Go half page up is good, and make that for the config go_half_page_up as well, so change the scroll -> go.

[MattiaPun]

Thank you for your contribution!