Add Current Navigation Application Customizer

- Created a new SPFx Application Customizer for current navigation.
- Implemented core functionality to fetch and render navigation items from a SharePoint term set.
- Added styles for the navigation component using SCSS.
- Included localization support for English and German languages.
- Developed unit tests for core navigation functionalities.
- Configured TypeScript and TSLint settings for the project.
- Added validation scripts for static assets and package configuration.

config/config.json

@@ -0,0 +1,16 @@
+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/config.2.0.schema.json",
+  "version": "2.0",
+  "bundles": {
+    "current-navigation-application-customizer": {
+      "components": [{
+        "entrypoint": "./lib/extensions/currentNavigation/CurrentNavigationApplicationCustomizer.js",
+        "manifest": "./src/extensions/currentNavigation/CurrentNavigationApplicationCustomizer.manifest.json"
+      }]
+    }
+  },
+  "externals": {},
+  "localizedResources": {
+    "CurrentNavigationApplicationCustomizerStrings": "lib/extensions/currentNavigation/loc/{locale}.js"
+  }
+}

config/copy-assets.json

@@ -0,0 +1,4 @@
+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/copy-assets.schema.json",
+  "deployCdnPath": "temp/deploy"
+}

config/package-solution.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/package-solution.schema.json",
+  "solution": {
+    "name": "current-navigation-client-side-solution",
+    "id": "bb8f9af5-b318-4111-8401-ce189cfe1b1a",
+    "version": "1.0.0.0",
+    "includeClientSideAssets": true,
+    "skipFeatureDeployment": true
+  },
+  "paths": { "zippedPackage": "solution/current-navigation.sppkg" }
+}

config/serve.json

@@ -0,0 +1,20 @@
+{
+  "$schema": "https://developer.microsoft.com/json-schemas/core-build/serve.schema.json",
+  "port": 4321,
+  "https": true,
+  "serveConfigurations": {
+    "default": {
+      "pageUrl": "https://sharepoint.contoso.local/sites/portal/SitePages/Home.aspx",
+      "customActions": {
+        "e37b828f-4315-461a-b1b0-fcf991deda3d": {
+          "location": "ClientSideExtension.ApplicationCustomizer",
+          "properties": {
+            "termSetId": "00000000-0000-0000-0000-000000000000",
+            "cacheMinutes": 15, "cacheVersion": "1", "maxDepth": 3,
+            "showRoot": false, "debug": true
+          }
+        }
+      }
+    }
+  }
+}

config/write-manifests.json

@@ -0,0 +1,4 @@
+{
+  "$schema": "https://developer.microsoft.com/json-schemas/spfx-build/write-manifests.schema.json",
+  "cdnBasePath": "<!-- PATH TO CDN -->"
+}