docs: enable version picker (#54161)

PR Close #54161

adev/src/app/core/layout/navigation/navigation.component.html

@@ -126,7 +126,7 @@
         </a>
 
         <!-- Version picker for v18+ -->
-        <!-- <div class="adev-nav-item">
+        <div class="adev-nav-item">
           <button
             type="button"
             aria-label="Select Angular version"
@@ -166,7 +166,7 @@
               }
             </ul>
           </ng-template>
-        </div> -->
+        </div>
       </li>
 
       <!-- Search -->

adev/src/app/core/services/version-manager.service.ts

@@ -10,22 +10,70 @@ import {Injectable, VERSION, computed, signal} from '@angular/core';
 
 // TODO(josephperrott): extract this out of the file into a managed location.
 const VERSIONS_CONFIG = {
-  currentVersion: "stable",
-  historicalVersionsLinkPattern: "https://v{{version}}.angular.dev",
+  currentVersion: 'stable',
+  historicalVersionsLinkPattern: 'https://v{{version}}.angular.dev',
   mainVersions: [
     {
-      version: "stable",
-      url: "https://angular.dev"
+      version: 'stable',
+      url: 'https://angular.dev',
     },
     {
-      version: "rc",
-      url: "https://rc.angular.dev"
+      version: 'v16',
+      url: 'https://v16.angular.io/docs',
     },
     {
-      version: "next",
-      url: "https://next.angular.dev"
-    }
-  ]
+      version: 'v15',
+      url: 'https://v15.angular.io/docs',
+    },
+    {
+      version: 'v14',
+      url: 'https://v14.angular.io/docs',
+    },
+    {
+      version: 'v13',
+      url: 'https://v13.angular.io/docs',
+    },
+    {
+      version: 'v12',
+      url: 'https://v12.angular.io/docs',
+    },
+    {
+      version: 'v11',
+      url: 'https://v11.angular.io/docs',
+    },
+    {
+      version: 'v10',
+      url: 'https://v10.angular.io/docs',
+    },
+    {
+      version: 'v9',
+      url: 'https://v9.angular.io/docs',
+    },
+    {
+      version: 'v8',
+      url: 'https://v8.angular.io/docs',
+    },
+    {
+      version: 'v7',
+      url: 'https://v7.angular.io/docs',
+    },
+    {
+      version: 'v6',
+      url: 'https://v6.angular.io/docs',
+    },
+    {
+      version: 'v5',
+      url: 'https://v5.angular.io/docs',
+    },
+    {
+      version: 'v4',
+      url: 'https://v4.angular.io/docs',
+    },
+    {
+      version: 'v2',
+      url: 'https://v2.angular.io/docs',
+    },
+  ],
 };
 
 export interface Version {