Fix "Create project" button layout with restricted visibility

When the administrator restrict visibility options the information
message break the buttons layout. Change the message style.

CHANGELOG

@@ -3,6 +3,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 v 8.13.0 (unreleased)
   - Speed-up group milestones show page
   - Fix robots.txt disallowing access to groups starting with "s" (Matt Harrison)
+  - Fix "Create project" button layout when visibility options are restricted
 v 8.12.2 (unreleased)
   - Fix Import/Export not recognising correctly the imported services.

app/views/shared/_visibility_level.html.haml

@@ -6,7 +6,7 @@
     - if can_change_visibility_level
       = render('shared/visibility_radios', model_method: :visibility_level, form: f, selected_level: visibility_level, form_model: form_model)
     - else
-      .col-sm-10
+      %div
         %span.info
           = visibility_level_icon(visibility_level)
           %strong

app/views/shared/_visibility_radios.html.haml

@@ -10,6 +10,6 @@
       .option-descr
         = visibility_level_description(level, form_model)
 - unless restricted_visibility_levels.empty?
-  .col-sm-10
+  %div
     %span.info
       Some visibility level settings have been restricted by the administrator.