Allow custom icons and additional links in left nav

dev-test/config.yml

@@ -62,6 +62,7 @@ collections: # A list of collections the CMS should be able to edit
 
   - name: 'settings'
     label: 'Settings'
+    icon: 'settings'
     delete: false # Prevent users from deleting documents in this collection
     editor:
       preview: false

dev-test/index.html

@@ -237,6 +237,7 @@
         );
       }
     });
+    CMS.registerAdditionalLink('Example.com', 'https://example.com/', 'new-tab');
   </script>
 </body>
 </html>