Decrease GameController update loop time

Decreased the GameController update loop time from 10s to 2s. Better UX
if user changes the server URL and games need to be fetched. The fetch
does feel more "instant" for the user, than with the 10s as before.

pkg/controller/controller.go

@@ -77,7 +77,7 @@ func (controller *Controller) WithStatusController() *Controller {
 }
 
 func (controller *Controller) WithGameController() *Controller {
-	controller.Game = NewGameController(controller, 10*time.Second)
+	controller.Game = NewGameController(controller, 2*time.Second)
 	return controller
 }