add description for searching to shortcut modal

packages/app/resource/locales/en_US/translation.json

@@ -439,6 +439,7 @@
       "Open/Close shortcut help": "Open/Close<br>shortcut help",
       "Edit Page": "Edit Page",
       "Create Page": "Create Page",
+      "Search": "Search",
       "Show Contributors": "Show Contributors",
       "MirrorMode": "Mirror Mode",
       "Konami Code": "Konami Code",

packages/app/resource/locales/ja_JP/translation.json

@@ -439,6 +439,7 @@
       "Open/Close shortcut help": "ショートカットヘルプ<br>の表示/非表示",
       "Edit Page": "ページ編集",
       "Create Page": "ページ作成",
+      "Search": "検索",
       "Show Contributors": "コントリビューター<br>を表示",
       "MirrorMode": "ミラーモード",
       "Konami Code": "コナミコマンド",

packages/app/resource/locales/zh_CN/translation.json

@@ -418,6 +418,7 @@
 			"Open/Close shortcut help": "打开/关闭快捷方式帮助",
 			"Edit Page": "编辑页面",
 			"Create Page": "创建页面",
+      "Search": "搜索",
 			"Show Contributors": "显示参与者",
 			"Konami Code": "Konami Code",
 			"konami_code_url": "https://en.wikipedia.org/wiki/Konami_Code"

packages/app/src/server/views/modal/shortcuts.html

@@ -26,6 +26,10 @@
                     <th>{{ t('modal_shortcuts.global.Edit Page') }}:</th>
                     <td><span class="key">E</span></td>
                   </tr>
+                  <tr>
+                    <th>{{ t('modal_shortcuts.global.Search') }}:</th>
+                    <td><span class="key">/</span></td>
+                  </tr>
                   <tr>
                     <th>{{ t('modal_shortcuts.global.Show Contributors') }}:</th>
                     <td>
@@ -79,7 +83,7 @@
               <table class="table">
                 <tr>
                   <th>{{ t('modal_shortcuts.commentform.Post') }}:</th>
-                  <td><span class="key cmd-key"></span> + <span class="key key-longer">{% include '../widget/icon-keyboard-return-enter.html' %}</span></td>
+                  <td class="text-nowrap"><span class="key cmd-key"></span> + <span class="key key-longer">{% include '../widget/icon-keyboard-return-enter.html' %}</span></td>
                 </tr>
                 <tr>
                   <th>{{ t('modal_shortcuts.editor.Delete Line') }}:</th>