target="_blank" should not be translated

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#attr-target

cms/templates/widgets/header.html

@@ -135,7 +135,7 @@
         <h2 class="sr">${_("Help &amp; Account Navigation")}</h2>
         <ol>
           <li class="nav-item nav-account-help">
-            <h3 class="title"><span class="label"><a href="${get_online_help_info(online_help_token)['doc_url']}" title="${_("Contextual Online Help")}" target="${_("_blank")}">${_("Help")}</a></span></h3>
+            <h3 class="title"><span class="label"><a href="${get_online_help_info(online_help_token)['doc_url']}" title="${_("Contextual Online Help")}" target="_blank">${_("Help")}</a></span></h3>
           </li>
 
           <li class="nav-item nav-account-user">
@@ -162,7 +162,7 @@
         <h2 class="sr">${_("You're not currently signed in")}</h2>
         <ol>
           <li class="nav-item nav-not-signedin-help">
-            <a href="${get_online_help_info(online_help_token)['doc_url']}" title="${_("Contextual Online Help")}" target="${_("_blank")}">${_("Help")}</a>
+            <a href="${get_online_help_info(online_help_token)['doc_url']}" title="${_("Contextual Online Help")}" target="_blank">${_("Help")}</a>
           </li>
           <li class="nav-item nav-not-signedin-signup">
             <a class="action action-signup" href="${reverse('signup')}">${_("Sign Up")}</a>