add gradle wrapper

Author: jasonpraful

examples/with-notifications/android/gradle/wrapper/gradle-wrapper.jar

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

examples/with-notifications/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,3 +3,4 @@ plugins { id("com.facebook.react.settings") }
 extensions.configure(com.facebook.react.ReactSettingsExtension){ ex -> ex.autolinkLibrariesFromCommand() }
 rootProject.name = 'withnotification'
 include ':app'
+includeBuild('../node_modules/@react-native/gradle-plugin')