Organise 'Under the Hood'

Summary: This change alphabetically sorts the 'Under the Hood' section and adds a 'Meta' parent category for everything that is internal as to add a visual cue of what is internal and whats not.

Reviewed By: passy

Differential Revision: D41273678

fbshipit-source-id: 1acf8da184762d5924bff90b6691be1e4be92c46

docs/extending/testing-rn.mdx

@@ -1,7 +1,7 @@
 ---
 id: testing-rn
 title: Testing React Native Changes in the Sample App
-sidebar_label: Testing RN Changes
+sidebar_label: Testing React Native Changes
 ---
 import useBaseUrl from '@docusaurus/useBaseUrl';
 

website/sidebars.js

@@ -150,31 +150,35 @@ module.exports = {
       {
         'Contributing to the Documentation': ['internals/documentation-formatting', 'internals/documentation-writing-guide'],
       },
+      'internals/device-identifiers',
+      'internals/linters',
       'extending/public-releases',
       'extending/testing-rn',
-      'internals/linters',
-      'internals/device-identifiers',
       ...fbInternalOnly([
-        'fb/release-infra',
-        'fb/LauncherConfig',
-        'fb/hacking-on-launcher',
-        'fb/arc_uiqr',
-        'fb/Flipper-fbsource-Pinning',
-        'fb/Flipper-Release-Cycle',
-        'fb/Add-Support-Group-to-Flipper-Support-Form',
-        'fb/Alerts',
-        'fb/bundling',
-        'fb/Electron-Upgrade',
-        'fb/flipper-analytics',
-        'fb/Navigation-Plugin-Development-Guide',
-        'fb/Oncall-Runbook',
-        'fb/sandcastle',
-        'fb/Star-Ratings',
-        'fb/sandcastle-overview',
-        'fb/error-logging',
-        'fb/scribe',
-        'fb/async-testing',
-        'fb/connections',
+        {
+          "Meta": [
+            'fb/release-infra',
+            'fb/LauncherConfig',
+            'fb/hacking-on-launcher',
+            'fb/arc_uiqr',
+            'fb/Flipper-fbsource-Pinning',
+            'fb/Flipper-Release-Cycle',
+            'fb/Add-Support-Group-to-Flipper-Support-Form',
+            'fb/Alerts',
+            'fb/bundling',
+            'fb/Electron-Upgrade',
+            'fb/flipper-analytics',
+            'fb/Navigation-Plugin-Development-Guide',
+            'fb/Oncall-Runbook',
+            'fb/sandcastle',
+            'fb/Star-Ratings',
+            'fb/sandcastle-overview',
+            'fb/error-logging',
+            'fb/scribe',
+            'fb/async-testing',
+            'fb/connections',
+          ]
+        }
       ]),
     ],
   },