clearInlineSlots method
Clears every inline slot across every placement, reported as reason.
Implementation
void clearInlineSlots({DismissReason? reason = DismissReason.userClose}) {
final removed = _slotPayloads.values.toList();
_slotConfigs.clear();
_slotPayloads.clear();
_notifyInlineRemoved(removed, reason);
notifyListeners();
}