docs: added algolia guide (#11971)

* initial

* finished changes

* small title change

* improve title

* add cover

www/apps/resources/sidebars/integrations.mjs

@@ -102,4 +102,16 @@ export const integrationsSidebar = [
       },
     ],
   },
+  {
+    type: "category",
+    title: "Search",
+    initialOpen: true,
+    children: [
+      {
+        type: "ref",
+        path: "/integrations/guides/algolia",
+        title: "Algolia",
+      },
+    ],
+  },
 ]