chore: apply review comments to simplify the script

Author: adhorodyski

packages/platform-ios/template/ios/HelloWorld.xcodeproj/project.pbxproj

@@ -179,7 +179,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "bash -l -c \"${PROJECT_DIR}/bundle-react-native-code-and-images.sh\"\n";
+			shellScript = "bash -l -c \"${REACT_NATIVE_PATH}/scripts/xcode/with-environment.sh\" \"${PROJECT_DIR}/react-native-xcode.sh\"\n";
 		};
 		00EEFC60759A1932668264C0 /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;

packages/platform-ios/template/ios/bundle-react-native-code-and-images.sh

@@ -0,0 +1,6 @@
+set -e
+
+export CONFIG_CMD="dummy-workaround-value"
+export CLI_PATH="$("$NODE_BINARY" --print "require('path').dirname(require.resolve('@rnef/cli/package.json')) + '/dist/src/bin.js'")"
+
+. "$REACT_NATIVE_PATH/scripts/react-native-xcode.sh"