fix(国际化): 表头格式化

--bug=1008889 --user=郭雨琦 【ID1008889】【国际化】-所有表头格式例如“ Api
Name”
，单词首字母大写，现在所有页面都不一致

frontend/src/i18n/en-US.js

@@ -13,8 +13,8 @@ export default {
     sort_default: "Default",
     please_select_import_mode: 'Please select import mode',
     please_select_import_module: 'Please select import module',
-    pass_rate: 'Pass rate',
-    execution_times: 'Execution times',
+    pass_rate: 'Pass Rate',
+    execution_times: 'Execution Times',
     cover: 'Cover',
     module_title: 'Default module',
     save_data_when_page_change: 'Save when page change',
@@ -69,7 +69,7 @@ export default {
     input_limit: 'Within {0} and {1} characters',
     login: 'Sign In',
     welcome: 'One-stop open source continuous testing platform',
-    theme_color: 'Theme color',
+    theme_color:'Theme color',
     username: 'Username',
     password: 'Password',
     input_username: 'Please enter username',
@@ -79,7 +79,7 @@ export default {
     update_user_id: 'Updater ID',
     update_time: 'Updated Time',
     delete_time: 'Delete Time',
-    delete_user: 'Deleted by',
+    delete_user: 'Deleted By',
     delete_user_id: 'Deleted by id',
     add: 'Add',
     preview: 'Preview',
@@ -712,7 +712,7 @@ export default {
       create: "Create Custom Code",
       update: "Update Custom Code",
       delete: "Delete Custom Code",
-      language: "language",
+      language: "Language",
       relate_tip: "Create in the Project Settings -> Custom Code Snippet menu",
       select_tip: "Please select a custom code!",
       none_content: "The custom code snippet is empty！",
@@ -927,11 +927,11 @@ export default {
     test_name_is_null: 'Test name cannot be empty! ',
     project_is_null: 'Project cannot be empty! ',
     jmx_is_null: 'Must contain a JMX file, and can only contain a JMX file!',
-    file_name: 'File name',
+    file_name: 'File Name',
     file_size: 'File size',
     file_type: 'File Type',
     file_status: 'File Status',
-    last_modify_time: 'Modify time',
+    last_modify_time: 'Modify Time',
     upload_tips: 'Drag files here, or <em> click to upload </em>',
     upload_type: 'Only JMX/CSV/JAR files can be uploaded',
     related_file_not_found: "No related test file found!",
@@ -1102,18 +1102,18 @@ export default {
       api_title: "Api Test",
       case_title: "Test Case",
       doc_title: "DOC",
-      api_name: "Api name",
-      api_status: "Api status",
-      api_type: "Api type",
+      api_name: "Api Name",
+      api_status: "Api Status",
+      api_type: "Api Type",
       api_agreement: "Method",
-      api_path: "Api path",
+      api_path: "Api Path",
       api_definition_path: "API Path",
       api_case_path: "Case Path",
-      api_principal: "Api principal",
-      api_last_time: "Last update time",
+      api_principal: "Api Principal",
+      api_last_time: "Last Update Time",
       api_case_number: "Cases",
-      api_case_status: "Case status",
-      api_case_passing_rate: "Use case pass rate",
+      api_case_status: "Case Status",
+      api_case_passing_rate: "Use Case Pass Rate",
       create_tip: "Note: Detailed interface information can be filled out on the edit page",
       api_import: "Api Import",
       check_select: "Please check the API",
@@ -1270,15 +1270,15 @@ export default {
       scenario_test: "Scenario test",
       scenario_list: "Scenario List",
       add_scenario: "Add scenario",
-      scenario_name: "Scenario name",
-      case_level: "Case level",
+      scenario_name: "Scenario Name",
+      case_level: "Case Level",
       tag: "Tag",
       creator: "Creator",
-      update_time: "Update time",
+      update_time: "Update Time",
       step: "Step",
-      last_result: "Last result",
+      last_result: "Last Result",
       last_result_id: 'Last result id',
-      passing_rate: "Passing rate",
+      passing_rate: "Passing Rate",
       success: "Success",
       fail: "Fail",
       saved: "Saved",
@@ -1736,7 +1736,7 @@ export default {
         title: "Updated interfaces in the past 7 days",
         table_coloum: {
           index: "ID",
-          api_name: "Api name",
+          api_name: "Api Name",
           path: "path",
           api_status: "Api status",
           update_time: "Update time",
@@ -1849,7 +1849,7 @@ export default {
     recent_plan: "My recent plan",
     recent_case: "My recent case",
     recent_review: "My recent review",
-    pass_rate: "Pass rate",
+    pass_rate: "Pass Rate",
     execution_result: ": Please select the execution result",
     actual_result: ": The actual result is empty",
     cancel_relevance_success: "Unlinked successfully",
@@ -1898,7 +1898,7 @@ export default {
       manual: "Manual",
       create: "Create test case",
       case_type: "Case Type",
-      name: "Test case name",
+      name: "Test Case Name",
       module: "Module",
       project: 'Project',
       maintainer: "Maintainer",
@@ -2200,7 +2200,7 @@ export default {
       issue: "Issue",
       issue_management: "Issue Management",
       platform_status: "Platform Status",
-      issue_resource: "Issue source",
+      issue_resource: "Issue Source",
       create_issue: "Create Issue",
       add_issue: "Add Issue",
       issue_list: "Issue List",