XWIKI-16216: Allow users to rebind the shortcuts from their user prof…

…ile UI

* Fixed the view display when the shortcut preference is empty.

xwiki-platform-core/xwiki-platform-user/xwiki-platform-user-profile/xwiki-platform-user-profile-ui/src/main/resources/XWiki/XWikiUserPreferencesSheet.xml

@@ -424,7 +424,7 @@
         #end>
     #else
       <span>
-        #if("$!value" != '') $!value##
+        #if("$!shortcutPreference" != '') $!value##
         #else $defaultValue##
           <small>($escapetool.xml($services.localization.render('userprofile.default')))</small>##
         #end</span>