docs: improved glossary feature (#4819)

www/docs/sidebars.js

@@ -360,6 +360,15 @@ module.exports = {
       },
       className: "homepage-sidebar-item",
     },
+    {
+      type: "doc",
+      id: "glossary",
+      label: "Glossary",
+      customProps: {
+        sidebar_icon: "book-open",
+      },
+      className: "homepage-sidebar-item",
+    },
     {
       type: "doc",
       id: "usage",