Implement styling options for all the bar components (not menus) through options variables.

modules/bar/menu/index.js

@@ -9,6 +9,7 @@ const Menu = () => {
       }),
     }),
     isVisible: true,
+    boxClass: "dashboard",
     props: {
       on_primary_click: (clicked, event) => {
         openMenu(clicked, event, "dashboardmenu");