feat: Conversation content is deletable‌

Author: wangdan-fit2cloud

ui/src/components/ai-chat/component/chat-input-operate/index.vue

@@ -209,6 +209,7 @@
         @keydown.enter="sendChatHandle($event)"
         @paste="handlePaste"
         class="chat-operate-textarea"
+        clearable
       />
       <div class="operate flex-between">
         <div>