fix(examples): add missing imports for conversation component (#57)

Author: cwandev

packages/examples/src/conversation.vue

@@ -1,6 +1,7 @@
 <script setup lang="ts">
-import { Conversation, ConversationContent, ConversationScrollButton } from '@repo/elements/conversation'
+import { Conversation, ConversationContent, ConversationEmptyState, ConversationScrollButton } from '@repo/elements/conversation'
 import { Message, MessageContent } from '@repo/elements/message'
+import { MessageSquareIcon } from 'lucide-vue-next'
 import { nanoid } from 'nanoid'
 import { onMounted, onUnmounted, ref } from 'vue'