fix: translations

lms/templates/livecode/extension_footer.html

@@ -18,11 +18,11 @@
     <div class="row">
       <div class="col-lg-8 col-md-6">
         <div class="controls">
-          <button class="run">Run</button>
+          <button class="run">{{ _("Run") }}</button>
 
           <div class="exercise-controls pull-right">
             <span style="padding-right: 10px;"><span class="last-submitted human-time" data-timestamp=""></span></span>
-            <button class="submit btn-primary">Submit</button>
+            <button class="submit btn-primary">{{ _("Submit") }}</button>
           </div>
         </div>
       </div>