More fixes for PR

Author: gosha212

playground/src/app.ts

@@ -21,8 +21,10 @@ function start() {
   registerScreens();
   addProcessors();
   setDefaultOptions();
-  Navigation.dismissAllModals();
-  setRoot();
+  Navigation.events().registerAppLaunchedListener(async () => {
+    Navigation.dismissAllModals();
+    setRoot();
+  });
 }
 
 function setRoot() {

playground/src/screens/StackCommandsScreen.tsx

@@ -47,12 +47,16 @@ export default class StackCommandsScreen extends NavigationComponent<NavigationP
         this.setState({
           pushPromiseResult: `push promise resolved with: ${pushId}`,
         });
-        return Navigation.pop('ChildId');
+        return pushId;
       })
+      // FIXME: remove this timeout
+      .then((popId) => new Promise<string>((resolve) => setTimeout(() => resolve(popId), 500)))
+      .then((popId) => Navigation.pop(popId))
       .then((popId) => {
         this.setState({
           popPromiseResult: `pop promise resolved with: ${popId}`,
         });
-      });
+      })
+      .catch((err) => console.log(err));
   };
 }