Updating user guide index (#13942)

- changing a mxd to mdx format
- updating the user guide index that was still referencing the old
structure - see attached screenshot for past structure
<img width="1405" height="864" alt="Screenshot 2025-08-16 at 10 33 14"
src="https://github.com/user-attachments/assets/cd14f233-c9c7-4426-b61b-40eb038b3a55"
/>

packages/twenty-website/src/content/user-guide/collaboration.mdx

@@ -4,4 +4,4 @@ icon: IconUsers
 info: Discover how to leverage Notes and Tasks to better collaborate with your team.
 image: /images/user-guide/what-is-twenty/20.png
 sectionInfo: A brief guide to grasp the basics of Twenty
----
+---

packages/twenty-website/src/content/user-guide/constants/UserGuideIndex.ts

@@ -4,24 +4,36 @@ export const USER_GUIDE_INDEX = {
       { fileName: 'getting-started' },
       { fileName: 'what-is-twenty' },
       { fileName: 'create-workspace' },
+      { fileName: 'configure-workspace-in-three-steps' },
+      { fileName: 'getting-around-twenty' },
     ],
     Objects: [
       { fileName: 'objects' },
       { fileName: 'standard-objects' },
       { fileName: 'fields' },
-      { fileName: 'views-sort-filter' },
-      { fileName: 'table-views' },
-      { fileName: 'kanban-views' },
+      { fileName: 'creating-records' },
       { fileName: 'import-export-data' },
     ],
-    Functions: [
-      { fileName: 'functions' },
-      { fileName: 'emails' },
+    Views: [
+      { fileName: 'views' },
+      { fileName: 'views-sort-filter' },
+      { fileName: 'kanban-views' },
+    ],
+    Collaboration: [
+      { fileName: 'collaboration' },
       { fileName: 'notes' },
       { fileName: 'tasks' },
+    ],
+    Integrations: [
       { fileName: 'integrations' },
+      { fileName: 'getting-started-workflows' },
+      { fileName: 'workflows' },
+      { fileName: 'emails' },
       { fileName: 'api-webhooks' },
     ],
+    Settings: [
+      { fileName: 'permissions' },
+    ],
     Other: [
       { fileName: 'other' },
       { fileName: 'glossary' },