【解决todo】el-button icon 改为 Icon 使用 iconfy 资源

src/assets/ai/clear.svg

@@ -1 +0,0 @@
-<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg t="1716342375293" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="2604" xmlns:xlink="http://www.w3.org/1999/xlink" width="200" height="200"><path d="M899.1 869.6l-53-305.6H864c14.4 0 26-11.6 26-26V346c0-14.4-11.6-26-26-26H618V138c0-14.4-11.6-26-26-26H432c-14.4 0-26 11.6-26 26v182H160c-14.4 0-26 11.6-26 26v192c0 14.4 11.6 26 26 26h17.9l-53 305.6c-0.3 1.5-0.4 3-0.4 4.4 0 14.4 11.6 26 26 26h723c1.5 0 3-0.1 4.4-0.4 14.2-2.4 23.7-15.9 21.2-30zM204 390h272V182h72v208h272v104H204V390z m468 440V674c0-4.4-3.6-8-8-8h-48c-4.4 0-8 3.6-8 8v156H416V674c0-4.4-3.6-8-8-8h-48c-4.4 0-8 3.6-8 8v156H202.8l45.1-260H776l45.1 260H672z" p-id="2605" fill="#8a8a8a"></path></svg>

src/views/ai/chat/index/index.vue

@@ -22,11 +22,14 @@
             <Icon icon="ep:setting" class="ml-10px" />
           </el-button>
           <el-button size="small" class="btn" @click="handlerMessageClear">
-            <img src="@/assets/ai/clear.svg" class="h-14px" />
+            <Icon icon="heroicons-outline:archive-box-x-mark" color="#787878" />
+          </el-button>
+          <el-button size="small" class="btn">
+            <Icon icon="ep:download" color="#787878" />
+          </el-button>
+          <el-button size="small" class="btn" @click="handleGoTopMessage" >
+            <Icon icon="ep:top" color="#787878" />
           </el-button>
-          <!-- TODO @fan：下面两个 icon，可以使用类似 <Icon icon="ep:question-filled" /> 替代哈 -->
-          <el-button size="small" :icon="Download" class="btn" />
-          <el-button size="small" :icon="Top" class="btn" @click="handleGoTopMessage" />
         </div>
       </el-header>