Bump version to 1.1.1 and update related manifests

- Updated version in package.json and package-lock.json to 1.1.1
- Changed version in deployment manifest files to 1.1.1
- Added new elements.xml for MegaMenu Application Customizer

temp/manifests.json

@@ -695,7 +695,7 @@
     "alias": "MegaMenuApplicationCustomizer",
     "componentType": "Extension",
     "extensionType": "ApplicationCustomizer",
-    "version": "1.1.0",
+    "version": "1.1.1",
     "manifestVersion": 2,
     "requiresCustomScript": false,
     "loaderConfig": {