feat: enable hermes by default

Author: satya164

packages/create-react-native-library/templates/example/example/android/app/build.gradle

@@ -79,7 +79,7 @@ import org.apache.tools.ant.taskdefs.condition.Os
  */
 
 project.ext.react = [
-    enableHermes: false,  // clean and rebuild if changing
+    enableHermes: true,  // clean and rebuild if changing
 ]
 
 apply from: "../../node_modules/react-native/react.gradle"

packages/create-react-native-library/templates/example/example/android/app/proguard-rules.pro

@@ -8,3 +8,6 @@
 #   http://developer.android.com/guide/developing/tools/proguard.html
 
 # Add any project specific keep options here:
+
+-keep class com.facebook.hermes.unicode.** { *; }
+-keep class com.facebook.jni.** { *; }

packages/create-react-native-library/templates/example/example/ios/Podfile

@@ -13,7 +13,7 @@ target '<%- project.name %>Example' do
   use_react_native!(
     :path => config[:reactNativePath],
     # to enable hermes on iOS, change `false` to `true` and then install pods
-    :hermes_enabled => flags[:hermes_enabled],
+    :hermes_enabled => true,
     :fabric_enabled => flags[:fabric_enabled],
     # An absolute path to your application root.
     :app_path => "#{Pod::Config.instance.installation_root}/.."

packages/create-react-native-library/templates/expo-library/example/app.json

@@ -15,6 +15,7 @@
     "ios": {
       "supportsTablet": true
     },
+    "jsEngine": "hermes",
     "assetBundlePatterns": [
       "**/*"
     ]