deleteRoom method
Implementation
@override
Future<ChatResult<void>> deleteRoom(String roomId) async {
_rooms.remove(roomId);
_roomDetails.remove(roomId);
_messages.remove(roomId);
_unreads.remove(roomId);
_reactions.remove(roomId);
_pins.remove(roomId);
_receipts.remove(roomId);
_roomMembers.remove(roomId);
return const ChatSuccess(null);
}