website/docs: Enterprise docs (#6632)

* new ent docs

* first drafts WIP

* Optimised images with calibre/image-actions

* more details added

* further updates

* tweaks

* better image

* Optimised images with calibre/image-actions

* fix typos

* final edits

* fixed formatting fail

---------

Co-authored-by: Tana Berry <tana@goauthentik.io>
Co-authored-by: authentik-automation[bot] <135050075+authentik-automation[bot]@users.noreply.github.com>

website/sidebars.js

@@ -32,7 +32,7 @@ const docsSidebar = {
         {
             type: "category",
             label: "Core Concepts",
-            collapsed: false,
+            collapsed: true,
             items: [
                 "core/terminology",
                 "core/applications",
@@ -42,6 +42,20 @@ const docsSidebar = {
                 "core/architecture",
             ],
         },
+        {
+            type: "category",
+            label: "Enterprise",
+            collapsed: true,
+            link: {
+                type: "doc",
+                id: "enterprise/index",
+            },
+            items: [
+                "enterprise/get-started",
+                "enterprise/manage-enterprise",
+                "enterprise/entsupport",
+            ],
+        },
         {
             type: "category",
             label: "Providers",