fix(系统设置): 图表的标题较长时，导出成功提示显示异常

core/core-frontend/src/style/index.less

@@ -426,7 +426,11 @@ strong {
     color: #1f2329;
     display: flex;
     align-items: center;
-    padding-right: 20px;
+    padding-right: 24px;
+  }
+
+  .m50-export {
+    max-width: 200px;
   }
 
   .btn-text {

core/core-frontend/src/views/visualized/data/dataset/ExportExcel.vue

@@ -174,7 +174,14 @@ const openMessageLoading = (text, type = 'success', cb) => {
   const customClass = `de-message-${type || 'success'} de-message-export`
   ElMessage({
     message: h('p', null, [
-      t(text),
+      h(
+        'span',
+        {
+          title: t(text),
+          class: 'ellipsis m50-export'
+        },
+        t(text)
+      ),
       h(
         ElButton,
         {