feat: 调整某些细节

1. 调整会话历史记录下拉列表的样式异常问题：居中改为左对齐
2. 修复对话时数据未返回时无加载动画的问题
3. 调整智能体页面，设置图标和删除图标比较小的问题

src/modules/ai-search/Sidebar.vue

@@ -20,7 +20,7 @@
 </template>
 
 <script setup>
-import { ref, defineEmits, defineProps, watch } from 'vue';
+import { ref, watch } from 'vue';
 
 const loading = ref(false);
 const checked_list = ref([]);

src/modules/conversation-content/DialogContent.vue

@@ -1,10 +1,10 @@
 <template>
-  <div class="dialog-chat-answer-content" :style="custom_style" v-if="content.length !== 0">
+  <div class="dialog-chat-answer-content" :style="custom_style">
     <div v-if="is_loading">
       <a-spin></a-spin>
     </div>
 
-    <div v-if="!is_loading" v-html="content" class="answer-content-text" />
+    <div v-if="content.length !== 0 && !is_loading" v-html="content" class="answer-content-text" />
 
     <slot></slot>
   </div>

src/modules/conversation-history/HistoryTypeDropdown.vue

@@ -140,7 +140,7 @@ onMounted(() => {
 .dropdown-container {
   display: flex;
   align-items: center;
-  justify-content: center;
+  /* justify-content: center; */
 
   padding-top: 8px;
   padding-bottom: 8px;

src/modules/intelligent/MessageBody.vue

@@ -351,6 +351,8 @@ onBeforeUnmount(() => {
 .card_box:hover .tools {
   cursor: pointer;
   visibility: visible;
+
+  font-size: 18px;
 }
 .card_box:hover .label-btn {
   visibility: visible;

src/views/conversation/ConversationChatContainer.vue

@@ -940,7 +940,7 @@ function handleWSClose(e) {}
 onMounted(() => {
   const agent_id = props.agent_id;
   const session_id = props.session_id;
-  console.log(import.meta.env, 88888);
+
   // 组件挂载
   if (session_id) {
     // 有历史记录：获取历史记录内容进行展示