fix(测试跟踪): 英文模式导入导出功能用例表头国际化有误

--bug=1032429 --user=宋昌昌 【测试跟踪】英文模式下-创建用例-导出excel-再导入-报错缺少名称表头 https://www.tapd.cn/55049933/s/1435408

framework/sdk-parent/frontend/src/i18n/lang/en-US.js

@@ -632,9 +632,9 @@ const message = {
   },
   custom_field: {
     add_option: "Add Option",
-    case_status: "Case Status",
+    case_status: "Case status",
     case_maintainer: "Maintainer",
-    case_priority: "Case Priority",
+    case_priority: "Priority",
     issue_creator: "Creator",
     issue_processor: "Processor",
     issue_status: "Status",

framework/sdk-parent/frontend/src/i18n/lang/track/en-US.js

@@ -52,7 +52,7 @@ export default {
     minder: "Minder",
     step_info: "Step Info",
     other_info: "Other Info",
-    step_describe: "Step Describe",
+    step_describe: "Step description",
     step_describe_tip:
       "Applicable to every step of the test scenario, there are clear test steps, expected results",
     text_describe: "Text Describe",
@@ -91,7 +91,7 @@ export default {
     manual: "Manual",
     create: "Create test case",
     case_type: "Case Type",
-    name: "Test Case Name",
+    name: "Name",
     module: "Module",
     project: "Project",
     maintainer: "Maintainer",
@@ -99,7 +99,8 @@ export default {
     number: "Number",
     prerequisite: "Prerequisite",
     step_desc: "Case step",
-    expected_results: "Expected results",
+    step_model: "Edit Model",
+    expected_results: "Step result",
     input_name: "Please enter name",
     input_module: "Please select module",
     input_maintainer: "Please select maintainer",