Fix clusters description text collapsing away on page-load

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/39771

Caused by https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/13363

app/views/projects/clusters/show.html.haml

@@ -10,9 +10,9 @@
   cluster_status: @cluster.status_name,
   cluster_status_reason: @cluster.status_reason } }
 
-  %section.settings
+  %section.settings.no-animate.expanded
     %h4= s_('ClusterIntegration|Enable cluster integration')
-    .settings-content.expanded
+    .settings-content
 
       .hidden.js-cluster-error.alert.alert-danger.alert-block.append-bottom-10{ role: 'alert' }
         = s_('ClusterIntegration|Something went wrong while creating your cluster on Google Container Engine')
@@ -49,14 +49,14 @@
           .form-group
             = field.submit _('Save'), class: 'btn btn-success'
 
-  %section.settings#js-cluster-details
+  %section.settings.no-animate#js-cluster-details{ class: ('expanded' if expanded) }
     .settings-header
       %h4= s_('ClusterIntegration|Cluster details')
       %button.btn.js-settings-toggle
         = expanded ? 'Collapse' : 'Expand'
       %p= s_('ClusterIntegration|See and edit the details for your cluster')
 
-    .settings-content.no-animate{ class: ('expanded' if expanded) }
+    .settings-content
 
       .form_group.append-bottom-20
         %label.append-bottom-10{ for: 'cluter-name' }
@@ -66,11 +66,11 @@
           %span.input-group-addon.clipboard-addon
             = clipboard_button(text: @cluster.gcp_cluster_name, title: s_('ClusterIntegration|Copy cluster name'))
 
-  %section.settings#js-cluster-advanced-settings
+  %section.settings.no-animate#js-cluster-advanced-settings{ class: ('expanded' if expanded) }
     .settings-header
       %h4= _('Advanced settings')
       %button.btn.js-settings-toggle
         = expanded ? 'Collapse' : 'Expand'
       %p= s_('ClusterIntegration|Manage Cluster integration on your GitLab project')
-    .settings-content.no-animate{ class: ('expanded' if expanded) }
+    .settings-content
       = render 'advanced_settings'