dispatchKeyboard
Dispatches one keyboard event to the focused component in the most recently committed frame. Dirty retained geometry synchronizes as described by dispatchPointer.
Return
the retained focused-input result, or InputResult.Ignored without a committed frame or focus target.
Parameters
event
immutable typed key event.
Throws
when called from the wrong thread, reentrantly, or while detached.
when focused behavior or cleanup fails; the exact first failure remains primary.