Add theme selection, dark/light mode selection

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

@@ -0,0 +1,21 @@
+<script setup lang="ts">
+import type { DropdownMenuRadioGroupEmits, DropdownMenuRadioGroupProps } from "reka-ui"
+import {
+  DropdownMenuRadioGroup,
+  useForwardPropsEmits,
+} from "reka-ui"
+
+const props = defineProps<DropdownMenuRadioGroupProps>()
+const emits = defineEmits<DropdownMenuRadioGroupEmits>()
+
+const forwarded = useForwardPropsEmits(props, emits)
+</script>
+
+<template>
+  <DropdownMenuRadioGroup
+    data-slot="dropdown-menu-radio-group"
+    v-bind="forwarded"
+  >
+    <slot />
+  </DropdownMenuRadioGroup>
+</template>