Andreas Kling d0578bfa32 LibGUI: Search the entire focus chain for shortcut actions ...

Instead of only looking in the focused widget, we now also look in the
ancestor chain of that widget for any ancestor with a registered action
for the given shortcut.

This makes it possible for parent widgets to capture action activations
while one of their children is focused.

2020-04-24 14:34:24 +02:00

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