fix(测试跟踪): 保存时用例ID未传值

--bug=1024402 --user=宋昌昌 【测试跟踪】功能用例-详情页点击编辑用例步骤-文本描述-保存报错 https://www.tapd.cn/55049933/s/1354191

test-track/backend/src/main/java/io/metersphere/service/TestCaseService.java

@@ -2254,10 +2254,10 @@ public class TestCaseService {
 
     public TestCase edit(EditTestCaseRequest request) {
         TestCaseWithBLOBs testCaseWithBLOBs = testCaseMapper.selectByPrimaryKey(request.getId());
-        request.setNum(testCaseWithBLOBs.getNum());
         if (testCaseWithBLOBs == null) {
             MSException.throwException(Translator.get("edit_load_test_not_found") + request.getId());
         }
+        request.setNum(testCaseWithBLOBs.getNum());
         this.setNode(request);
         return editTestCase(request);
     }

test-track/frontend/src/business/case/components/TestCaseEdit.vue

@@ -1249,6 +1249,7 @@ export default {
                 this.routerToEdit(response.data.id);
                 this.form.num = response.data.num;
                 this.form.customNum = response.data.customNum;
+                setTimeout(() => this.initEdit(), 500);
               }
             }
             this.createVersionId = null;

test-track/frontend/src/business/case/components/import/TestCaseCommonImportNew.vue

@@ -304,6 +304,7 @@ export default {
   flex: none;
   order: 0;
   flex-grow: 0;
+  border-radius: 4px;
 }
 
 .download-tips-content {