Fix outdated reference to mySaga

frontend/src/store/store.ts

@@ -59,6 +59,6 @@ export const store = configureStore({
 
 const path = window.location.pathname
 store.dispatch(connect("wss://mpvsync.de:8432/" + path));
-sagaMiddleware.run(mySaga);
+sagaMiddleware.run(rootSaga);
 
 export type RootState = ReturnType<typeof store.getState>;