Quit shortcut activates even in commit message

[dbr]

Describe the bug
If in key_config.ron I configure q (no modifiers) to be quit, it is impossible to type q in a input widget like the commit message

This works nicely, except, when typing in something like the commit window, I can't enter q without the application exiting

To Reproduce
Steps to reproduce the behavior:

1. Configure key_config.ron:

    exit: (
        code: Char('q'),
        modifiers: (
            bits: 0,
        ),
    ),

2. Try to write q in a commit message

Expected behavior
q should only quit when no input widget is active

Screenshots
N/a

Context (please complete the following information):

• OS/Distro + Version: Consistent on macOS/iTerm, Linux + xfce-terminal
• GitUI Version: 0.16
• Rust version: 1.51

Additional context
N/a

[dbr]

Actually this is less simple than I first thought:

• It's fairly reasonable for, say, ctrl+c to quit even when an input is active.
• It is fairly unreasonable for q to quit while trying to type "Require" in an input

..so maybe "shortcuts are ignored if no modifiers are specified"

However then Shift+q becomes a problem (unless this is handled by the terminal as just Q with no modifier, in which case this is is not an issue)

[extrawurst]

let me know if #771 will solve your issue

[dbr]

Yep that sounds good to me! Thanks!