Send message when a user create a conversation

src/helpers/conversations_helper.rs

@@ -69,6 +69,10 @@ pub fn add_member(conv_id: ConvID, user_id: &UserID, following: bool, admin: boo
                 }),
             )
         )?;
+    } else {
+        send_message(&NewConversationMessage::new_server_message(
+            conv_id, ConversationServerMessageType::UserCreatedConversation(user_id.clone()),
+        ))?;
     }
 
     Ok(())