input/keyboard: send modifiers on first keyboard enter
Created by: Xyene
Will fix Firefox bug https://bugzilla.mozilla.org/show_bug.cgi?id=1643991.
Fixes swaywm/sway#5462.
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Created by: Xyene
Will fix Firefox bug https://bugzilla.mozilla.org/show_bug.cgi?id=1643991.
Fixes swaywm/sway#5462.