Add dividers

firebase.json

@@ -44,6 +44,8 @@
       { "source": "/desktop/linux", "destination": "/development/platform-integration/linux/building", "type": 301 },
       { "source": "/perf/rendering/*", "destination": "/perf", "type": 301 },
       { "source": "/developing-packages", "destination": "/development/packages-and-plugins/developing-packages", "type": 301 },
+      { "source": "/development", "destination": "/", "type": 301 },
+      { "source": "/development/:rest*", "destination": "/:rest*", "type": 301 },
       { "source": "/development/ios-14", "destination": "/development/platform-integration/ios/ios-debugging", "type": 301 },
       { "source": "/development/ios-project-migration", "destination": "/development/platform-integration/ios", "type": 301 },
       { "source": "/development/platform-integration/ios-app-clip", "destination": "/development/platform-integration/ios/ios-app-clip", "type": 301 },

src/_data/sidenav.yml

@@ -60,6 +60,8 @@
     - title: Tutorials
       permalink: /reference/tutorials
 
+- divider
+
 - title: User interface
   permalink: /ui
   children:
@@ -423,6 +425,8 @@
     - title: Continuous deployment
       permalink: /deployment/cd
 
+- divider
+
 - title: Resources
   children:
     - title: Architectural overview