Update application.html.slim with later code changes

Author: Benedikt Artelt

app/views/layouts/application.html.slim

@@ -44,8 +44,8 @@ html lang=I18n.locale data-default-locale=I18n.default_locale
       = render('flash')
       - if current_user.try(:admin?) || (current_user.try(:teacher?) && !@embed_options[:hide_navbar])
         = yield(:breadcrumbs)
-    - if (controller_name == "exercises" && action_name == "implement") || (controller_name == 'community_solutions' && action_name == 'edit')
-      .container
+    - if (controller_name == 'exercises' && action_name == 'implement') || (controller_name == 'community_solutions' && action_name == 'edit')
+      .container-fluid
         = yield
     - else
       .container