fix: append slash in menubar links

Fixes an issue in which nested links were not applied to the current
route as it did not end in slash. This lead to invalid links and 404
errors when following such links.

See #305 for more information.

Author: sdirix

docusaurus.config.js

@@ -42,27 +42,27 @@ module.exports = {
           position: 'left',
         },
         {
-          to: 'docs',
+          to: 'docs/',
           label: 'Docs',
           position: 'left',
         },
         {
-          to: 'faq',
+          to: 'faq/',
           label: 'FAQ',
           position: 'left',
         },
         {
-          to: 'community',
+          to: 'community/',
           label: 'Community',
           position: 'left'
         },
         {
-          to: 'news',
+          to: 'news/',
           label: 'News',
           position: 'left',
         },
         {
-          to: 'support',
+          to: 'support/',
           label: 'Professional Support',
           position: 'right',
         },