Save to be translatable in Admin Panel SMTP settings.

client/components/settings/settingBody.jade

@@ -76,4 +76,4 @@ template(name='email')
         input.form-control#mail-server-from(type="email", placeholder="no-reply@domain.com" value="{{currentSetting.mailServer.from}}")
 
     li
-      button.js-save.primary Save
+      button.js-save.primary {{_ 'save'}}