feat: global shortcut support (#39604)

* Fix #5796

Global shortcuts can be easily introduced by adding "data-shortcut-keys"
to the elements

---------

Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>

web_src/js/features/repo-issue-content.ts

@@ -16,7 +16,6 @@ let i18nTextDeleteFromHistoryConfirm: string;
 function showContentHistoryDetail(issueBaseUrl: string, commentId: string, historyId: string, itemTitleHtml: string) {
   const elDetailDialog = createElementFromHTML(html`
     <div class="ui modal content-history-detail-dialog">
-      ${svgRaw('octicon-x', 16, 'close icon inside')}
       <div class="header flex-left-right">
         <div>${htmlRaw(itemTitleHtml)}</div>
         <div class="ui dropdown dialog-header-options tw-mr-8 tw-hidden">
@@ -26,6 +25,7 @@ function showContentHistoryDetail(issueBaseUrl: string, commentId: string, histo
             <div class="item tw-text-red" data-option-item="delete">${i18nTextDeleteFromHistory}</div>
           </div>
         </div>
+        ${svgRaw('octicon-x', 16, 'close-modal')}
       </div>
       <div class="comment-diff-data is-loading"></div>
     </div>