Add theme selection, dark/light mode selection

app/components/ui/dropdown-menu/DropdownMenu.vue

@@ -0,0 +1,19 @@
+<script setup lang="ts">
+import type { DropdownMenuRootEmits, DropdownMenuRootProps } from "reka-ui"
+import { DropdownMenuRoot, useForwardPropsEmits } from "reka-ui"
+
+const props = defineProps<DropdownMenuRootProps>()
+const emits = defineEmits<DropdownMenuRootEmits>()
+
+const forwarded = useForwardPropsEmits(props, emits)
+</script>
+
+<template>
+  <DropdownMenuRoot
+    v-slot="slotProps"
+    data-slot="dropdown-menu"
+    v-bind="forwarded"
+  >
+    <slot v-bind="slotProps" />
+  </DropdownMenuRoot>
+</template>