fixing alignment error on studio component error message, i18n error message

cms/static/sass/views/_unit.scss

@@ -357,6 +357,7 @@ body.course.unit,.view-unit {
         }
 
       .wrapper-alert-error {
+          margin-top: ($baseline*1.25);
           box-shadow: none;
           border-top: 5px solid $red-l1;
 

cms/templates/html_error.html

@@ -11,7 +11,7 @@
           ${_("We're having trouble rendering your component")}
         </h2>
 
-        <p>Students will not be able to access this component. Re-edit your component to fix the error.</p>
+        <p>${_("Students will not be able to access this component. Re-edit your component to fix the error.")}</p>
 
         % if message:
         <p class="description">