fix(测试跟踪): 功能用例名称超出限度后可以保存成功

--bug=1013750 --user=李玉号 【测试跟踪】标题长度为255字符，复制用例保存后，标题长度超过255 可以保存成功
https://www.tapd.cn/55049933/s/1172790

frontend/src/business/components/track/case/components/TestCaseBaseInfo.vue

@@ -14,7 +14,7 @@
             v-model="form.name"
             size="small"
             class="ms-case-input"
-            maxlength="225"
+            maxlength="255"
             show-word-limit
             :disabled="readOnly"/>
         </el-form-item>
@@ -130,6 +130,10 @@ export default {
           isValidate = false;
         }
       });
+      return isValidate;
+    },
+    validateCustomForm() {
+      let isValidate = true;
       this.$refs['customFieldForm'].validate((valid) => {
         if (!valid) {
           isValidate = false;

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

@@ -1001,7 +1001,11 @@ export default {
           return false;
         }
       });
-      let customValidate = this.$refs.testCaseBaseInfo.validateForm();
+      let baseInfoValidate = this.$refs.testCaseBaseInfo.validateForm();
+      if (!baseInfoValidate) {
+        return false;
+      }
+      let customValidate = this.$refs.testCaseBaseInfo.validateCustomForm();
       if (!customValidate) {
         let customFieldFormFields = this.$refs.testCaseBaseInfo.getCustomFields();
         for (let i = 0; i < customFieldFormFields.length; i++) {