Add theme selection, dark/light mode selection

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

@@ -0,0 +1,23 @@
+<script setup lang="ts">
+import type { DropdownMenuSeparatorProps } from "reka-ui"
+import type { HTMLAttributes } from "vue"
+import { reactiveOmit } from "@vueuse/core"
+import {
+  DropdownMenuSeparator,
+} from "reka-ui"
+import { cn } from "@/lib/utils"
+
+const props = defineProps<DropdownMenuSeparatorProps & {
+  class?: HTMLAttributes["class"]
+}>()
+
+const delegatedProps = reactiveOmit(props, "class")
+</script>
+
+<template>
+  <DropdownMenuSeparator
+    data-slot="dropdown-menu-separator"
+    v-bind="delegatedProps"
+    :class="cn('bg-border -mx-1 my-1 h-px', props.class)"
+  />
+</template>