Adopt standard keyboard shortcuts for video playback

[mvglasow]

Some keyboard shortcuts have become a de facto standard in video players:

• Space – Play/Pause
• Cursor left/right – Seek forward/backward

When not in editing mode, these keys should trigger the functions most people have come to expect, which would make editing a lot quicker.

[LeXofLeviafan]

I mean, the keybindings are editable. Though I'd prefer including a modifier key (like Ctrl) into the keybinding; since playing videos isn't actually the primary function of the app.

The main issue though is that there's no play/pause binding: these are treated as separate actions and have to be bound to separate keybindings. …Turns out it's actually there, just not easy to find 😐