fix(boilerplate): main entry point for monorepo (#2881 by @frankcalise)

Author: frankcalise

boilerplate/App.tsx

@@ -1,4 +1,5 @@
 import "@expo/metro-runtime"
+import { registerRootComponent } from "expo"
 import * as SplashScreen from "expo-splash-screen"
 import App from "@/app"
 
@@ -8,4 +9,7 @@ function IgniteApp() {
   return <App hideSplashScreen={SplashScreen.hideAsync} />
 }
 
-export default IgniteApp
+// registerRootComponent calls AppRegistry.registerComponent('main', () => App);
+// It also ensures that whether you load the app in Expo Go or in a native build,
+// the environment is set up appropriately
+registerRootComponent(IgniteApp)

boilerplate/package.json

@@ -2,7 +2,7 @@
   "name": "hello-world",
   "version": "0.0.1",
   "private": true,
-  "main": "expo/AppEntry.js",
+  "main": "App.tsx",
   "scripts": {
     "compile": "tsc --noEmit -p . --pretty",
     "format": "eslint . --fix",