Merge internal and external troubleshooting pages into one with optional internal-only content

Summary: Merged internal and external troubleshooting pages into one with optional internal-only content

Reviewed By: mweststrate

Differential Revision: D23651656

fbshipit-source-id: 330dd4b5cb49ae403a0a3760c1e23e30e56ad190

website/sidebars.js

@@ -97,8 +97,7 @@ module.exports = {
     ],
   },
   'fb-internal': {
-    'FB Internal': fbInternalOnly([
-      'fb/troubleshooting',
+    'FB Internal': fbInternalOnly([      
       'fb/Add-flipper-to-android-app',
       'fb/Adding-flipper-to-ios-app',
       'fb/LauncherConfig',

website/src/components/FBContent.jsx

@@ -17,6 +17,9 @@ function createElement(createElement) {
   if (React.isValidElement(createElement)) {
     return createElement;
   }
+  if (typeof createElement === 'string') {
+    return createElement;
+  }
   const element = createElement();
   if (React.isValidElement(element)) {
     return element;