PAGE: Shortcuts / accelerators / key bindings

[jdehaan]

Rework:

• gimp based on source look for "GimpEnumActionEntry"
• blender, look at release/scripts/presets/keyconfig/keymap_data/blender_default.py
• vscode https://code.visualstudio.com/docs/getstarted/keybindings
• nautilus/nemo
• ubuntu
• browsers