Correct spelling mistakes found with Codespell

app/cli/startstream.cpp

@@ -118,7 +118,7 @@ public:
             }
             break;
         // Occurs when the previous app quit has been completed, handles quitting errors if any
-        // happended. ComputerUpdated event's handler handles session start when previous app has
+        // happened. ComputerUpdated event's handler handles session start when previous app has
         // quit.
         case Event::AppQuitCompleted:
             if (m_State == StateSeekApp && !event.errorMessage.isEmpty()) {