Refresh UI components and showcase; release updated framework packages

packages/ui/components/MegaMenu.wrn

@@ -193,12 +193,12 @@ component MegaMenu {
         class="wrn-mega__trigger"
         aria-haspopup="true"
         aria-expanded='{visible}'
-        aria-label='{label}'
+        aria-label='{label || "Menu"}'
         @click='activatePanel(event)'
         @mouseenter='hoverPanel(event)'
       >
         <span class='wrn-mega__trigger-icon {icon}' data-show="icon" aria-hidden="true"></span>
-        <span class="wrn-mega__trigger-label" data-label='{label}' aria-hidden="true"></span>
+        <span class="wrn-mega__trigger-label" data-label='{label || "Menu"}' aria-hidden="true"></span>
         <span class="wrn-mega__arrow" aria-hidden="true">&#8250;</span>
       </button>