Allow Navigating Commit Summary With The Keyboard (not only mouse scrolling)

[Lking03x]

Can't use PAGE_DOWN PAGE_UP HOME END or any ARROW key to navigate commit summary area

Currently using arrows keys only move the text cursor. It can be even moved passed the screen edge. It doesn't scroll.

Preferred solution PAGE... : allow scrolling one page or a custom number of line (set in preferences) HOME and END : scroll to top, scroll to bottom ARROWS : should behave like CTRL + ( ARROW_(UP/DOWN) ) in sublime text, scrolling one line.

Regular text editing bindings when editing a commit message and this proposal suggestions when viewing commits.

EDIT:

• (+) allow changing text font size with CTRL+SCROLL
• (+) allow changing app font scale (preferences): currently one can only change the font size of commit summary / text files tabs (AFAIK). But the side bar text can be quite tiny on some display.