Simplify password change call syntax

src/actors/users_actor.rs

@@ -41,16 +41,13 @@ pub struct GetAllUsersRequest;
 pub struct GetAllUsersResult(pub Vec<User>);
 
 #[derive(Message)]
-#[rtype(ChangePasswordResult)]
+#[rtype(result = "bool")]
 pub struct ChangePasswordRequest {
     pub user_id: UserID,
     pub new_password: String,
     pub temporary: bool,
 }
 
-#[derive(Debug)]
-pub struct ChangePasswordResult(pub bool);
-
 #[derive(Message)]
 #[rtype(result = "bool")]
 pub struct AddSuccessful2FALogin(pub UserID, pub IpAddr);
@@ -109,14 +106,11 @@ impl Handler<LoginRequest> for UsersActor {
 }
 
 impl Handler<ChangePasswordRequest> for UsersActor {
-    type Result = MessageResult<ChangePasswordRequest>;
+    type Result = <ChangePasswordRequest as actix::Message>::Result;
 
     fn handle(&mut self, msg: ChangePasswordRequest, _ctx: &mut Self::Context) -> Self::Result {
-        MessageResult(ChangePasswordResult(self.manager.change_user_password(
-            &msg.user_id,
-            &msg.new_password,
-            msg.temporary,
-        )))
+        self.manager
+            .change_user_password(&msg.user_id, &msg.new_password, msg.temporary)
     }
 }