[MM-62094] E2E: Don't including loading screen or other windows in server map, remove check for loading screen finish (#3252)

src/main/views/loadingScreen.ts

@@ -99,6 +99,7 @@ export class LoadingScreen {
 
         if (process.env.NODE_ENV === 'test') {
             app.emit('e2e-app-loaded');
+            MainWindow.get()?.focus();
         }
     };