implement logout dialog, fix unused imports

src/components/ui/dialog/DialogTitle.vue

@@ -0,0 +1,15 @@
+<script setup lang="ts">
+import { DialogTitle as DialogTitlePrimitive } from 'radix-vue'
+import { cn } from '@/lib/utils'
+import type { HTMLAttributes } from 'vue'
+
+const props = defineProps<{
+  class?: HTMLAttributes['class']
+}>()
+</script>
+
+<template>
+  <DialogTitlePrimitive :class="cn('text-lg font-semibold leading-none tracking-tight', props.class)">
+    <slot />
+  </DialogTitlePrimitive>
+</template>