Update MegaMenu Application Customizer: Version bump to 1.1.0, localization support added, and unnecessary files removed

- Deleted obsolete localization file for English (en-us).
- Updated version number from 1.0.4 to 1.1.0 in manifests.js and manifests.json.
- Added localization support for German (de-de) in a new localization file.
- Removed unnecessary dependencies from manifests.
- Added .gitignore to exclude build artifacts and temporary files.

temp/manifests.js

@@ -2300,7 +2300,7 @@ function getManifests() {
     "alias": "MegaMenuApplicationCustomizer",
     "componentType": "Extension",
     "extensionType": "ApplicationCustomizer",
-    "version": "1.0.4",
+    "version": "1.1.0",
     "manifestVersion": 2,
     "requiresCustomScript": false,
     "loaderConfig": {
@@ -2316,18 +2316,16 @@ function getManifests() {
         "MegaMenuApplicationCustomizerStrings": {
           "defaultPath": "lib/extensions/megaMenu/loc/en-us.js",
           "type": "localizedPath",
-          "paths": {}
+          "paths": {
+            "de-DE": "lib/extensions/megaMenu/loc/de-de.js",
+            "en-US": "lib/extensions/megaMenu/loc/en-us.js"
+          }
         },
         "@microsoft/decorators": {
           "type": "component",
           "version": "1.4.1",
           "id": "f97266fb-ccb7-430e-9384-4124d05295d3"
         },
-        "@microsoft/sp-core-library": {
-          "type": "component",
-          "version": "1.4.1",
-          "id": "7263c7d0-1d6a-45ec-8d85-d4d1d234171b"
-        },
         "@microsoft/sp-application-base": {
           "type": "component",
           "version": "1.4.1",
@@ -2342,11 +2340,6 @@ function getManifests() {
           "type": "component",
           "version": "1.4.1",
           "id": "73e1dc6c-8441-42cc-ad47-4bd3659f8a3a"
-        },
-        "@microsoft/sp-page-context": {
-          "type": "component",
-          "version": "1.4.1",
-          "id": "1c4541f7-5c31-41aa-9fa8-fbc9dc14c0a8"
         }
       }
     }