fix: 修复创建性能测试查询文件的提示，计算图表不去单个计算

frontend/src/business/components/performance/test/EditPerformanceTest.vue

@@ -345,13 +345,11 @@ export default {
       this.$refs.basicConfig.threadGroups = threadGroups;
       this.$refs.pressureConfig.threadGroups = threadGroups;
 
-      threadGroups.forEach(tg => {
-        handler.calculateChart(tg);
-      })
+      handler.calculateTotalChart();
     },
     tgTypeChange(threadGroup) {
       let handler = this.$refs.pressureConfig;
-      handler.calculateChart(threadGroup);
+      handler.calculateTotalChart();
     }
   }
 }

frontend/src/business/components/performance/test/components/ExistFiles.vue

@@ -232,7 +232,7 @@ export default {
 
           callback();
         } else {
-          this.$error(this.$t('load_test.project_file_exist'));
+          this.$error(this.$t('load_test.project_file_exist') + ', name: ' + file.name);
         }
       });
     },