add dashboard

dashboard/composables/useMenu.ts

@@ -0,0 +1,12 @@
+
+
+const isOpen = ref<boolean>(false);
+
+function open() { isOpen.value = true; }
+function close() { isOpen.value = false; return true; }
+function toggle() { isOpen.value = !isOpen.value; }
+function set(value: boolean) { isOpen.value = value; }
+
+export function useMenu() {
+    return { isOpen, open, close, toggle, set }
+}