Fix "menus in site config contain errors"

wiki-hemera/config.yaml

@@ -103,11 +103,7 @@ params:
 ### See https://docs.stack.jimmycai.com/configuration/custom-menu.html
 ### To remove about, archive and search page menu item, remove `menu` field from their FrontMatter
 menu: 
-    main:
-        name: title (optional)
-        weight: -90
-        params:
-            icon: icon-name
+    main: []
 
     social:
         - identifier: gitea