Consider changing the default keybinding separator on printout to `-`

[jni]

• app-model version: 0.2.7
• Python version: 3.11
• Operating System: macOS

Description

Typically when I think about settings, config, etc, I try to make things as easily human-editable as possible. This one is minor but Control is easier to type than Ctrl (#209), and Ctrl-Y is easier to type than Ctrl+Y. (I also find it marginally easier to read.)

The keybindings modifiers parser already allows - when reading, so it would not be a big change (I hope) to change what is written down.

[tlambert03]

i think this should be an app-specific preference at best. using + is very common, and appeared to be the more common delimiter when I looked around when first implementing this (I think it has the advantage of semantics "this key plus this key"). but i do think you should be able to show them however you want to, and perhaps #211 would be a good place to do that