use map_or in user_can_invite

Signed-off-by: strawberry <strawberry@puppygock.gay>

src/service/rooms/state_accessor/mod.rs

@@ -143,12 +143,11 @@ impl Service {
 	/// Whether a user's power level is sufficient to invite other users
 	pub fn user_can_invite(&self, user_id: &UserId, room_id: &RoomId) -> Result<bool> {
 		self.room_state_get(room_id, &StateEventType::RoomPowerLevels, "")?
-			.map(|pdu_event| {
+			.map_or(Ok(false), |pdu_event| {
 				serde_json::from_str(pdu_event.content.get()).map(|content: RoomPowerLevelsEventContent| {
 					content.users.get(user_id).unwrap_or(&content.users_default) >= &content.invite
 				})
 			})
-			.unwrap_or(Ok(false))
 			.map_err(|_| Error::bad_database("Invalid history visibility event in database."))
 	}