handle menu legacy

layouts/partials/GetMenu

@@ -10,4 +10,11 @@
   {{ $menu = index site.Data.menus $kind }}
 {{ end }}
 
+{{ if reflect.IsSlice $menu }}
+  {{/*  LEGACY  */}}
+  {{ $menu = (dict
+    "items" $menu
+  ) }}
+{{ end }}
+
 {{ return $menu }}
\ No newline at end of file

layouts/partials/commons/menu.html

@@ -2,7 +2,8 @@
 {{ $items := .items }}
 {{ $context := .context }}
 {{ if $kind }}
-  {{ $items = partial "GetMenu" $kind }}
+  {{ $menu := partial "GetMenu" $kind }}
+  {{ $items = $menu.items }}
 {{ end }}
 {{- $level := .level -}}
 {{- $stop := .stop -}}