Replace prepend-top-15 css class

This replaces the prepend-top-15 css
class for the gl-mt-5 utility class from
GitLab-UI

app/assets/javascripts/ide/components/commit_sidebar/form.vue

@@ -138,7 +138,7 @@ export default {
           @input="updateCommitMessage"
           @submit="commit"
         />
-        <div class="clearfix prepend-top-15">
+        <div class="clearfix gl-mt-5">
           <actions />
           <loading-button
             :loading="submitCommitLoading"

app/views/devise/shared/_omniauth_box.html.haml

 - hide_remember_me = local_assigns.fetch(:hide_remember_me, false)
 
-.omniauth-container.prepend-top-15
+.omniauth-container.gl-mt-5
   %label.label-bold.d-block
     Sign in with
   - providers = enabled_button_based_providers

app/views/groups/settings/ci_cd/_auto_devops_form.html.haml

@@ -12,4 +12,4 @@
             .form-text.text-muted
               = s_('GroupSettings|The Auto DevOps pipeline will run if no alternative CI configuration file is found.')
               = link_to _('More information'), help_page_path('topics/autodevops/index.md'), target: '_blank'
-      = f.submit _('Save changes'), class: 'btn btn-success prepend-top-15'
+      = f.submit _('Save changes'), class: 'btn btn-success gl-mt-5'

app/views/projects/settings/ci_cd/_autodevops_form.html.haml

@@ -54,4 +54,4 @@
                     = s_('CICD|Automatic deployment to staging, manual deployment to production')
                     = link_to icon('question-circle'), help_page_path('topics/autodevops/customize.md', anchor: 'incremental-rollout-to-production-premium'), target: '_blank'
 
-          = f.submit _('Save changes'), class: "btn btn-success prepend-top-15", data: { qa_selector: 'save_changes_button' }
+          = f.submit _('Save changes'), class: "btn btn-success gl-mt-5", data: { qa_selector: 'save_changes_button' }

ee/app/views/admin/geo/projects/_all.html.haml

 - if @registries.any?
   - @registries.each do |project_registry|
-    .card.project-card.prepend-top-15
+    .card.project-card.gl-mt-5
       .card-header{ id: "project-#{project_registry.project_id}-header" }
         .d-flex.align-items-center
           - if project_registry.project.nil?

ee/app/views/admin/geo/projects/_failed.html.haml

 - if @registries.any?
   - @registries.each do |project_registry|
-    .card.project-card.prepend-top-15
+    .card.project-card.gl-mt-5
       .card-header{ id: "project-#{project_registry.project_id}-header" }
         .d-flex.align-items-center
           - if project_registry.project.nil?

ee/app/views/admin/geo/projects/_pending.html.haml

 - if @registries.any?
   - @registries.each do |project_registry|
-    .card.project-card.prepend-top-15
+    .card.project-card.gl-mt-5
       .card-header{ id: "project-#{project_registry.project_id}-header" }
         .d-flex.align-items-center
           - if project_registry.project.nil?

ee/app/views/admin/geo/projects/_synced.html.haml

 - if @registries.any?
   - @registries.each do |project_registry|
-    .card.project-card.prepend-top-15
+    .card.project-card.gl-mt-5
       .card-header{ id: "project-#{project_registry.project_id}-header" }
         .d-flex.align-items-center
           - if project_registry.project.nil?

ee/app/views/admin/geo/uploads/_registry.html.haml

-.card.upload-card.prepend-top-15
+.card.upload-card.gl-mt-5
   .card-header{ id: "upload-#{upload_registry.id}-header" }
     .d-flex
       %strong.text-truncate.flex-fill

ee/app/views/admin/licenses/_upload_trial_license.html.haml

@@ -6,7 +6,7 @@
         %button.close{ type: 'button', data: { dismiss: 'modal' }, aria: { label: 'Close' } }
           %span ×
         .modal-body-contents
-          .trial-activated-graphic.prepend-top-15
+          .trial-activated-graphic.gl-mt-5
             = custom_icon('ee_trial_license_activated', size: 100)
           %h3.confirmation-title
             Your trial license was issued!
@@ -21,7 +21,7 @@
             %a#show-license.show-license{ href: '#show-license' }
               Hide license key
               = icon('chevron-up')
-            .card.trial-license-preview.prepend-top-15
+            .card.trial-license-preview.gl-mt-5
               = license_key
             .modal-footer.form-actions
               %button.btn.btn-default{ type: 'button', data: { dismiss: 'modal' } } Cancel

ee/app/views/shared/promotions/_promote_group_webhooks.html.haml

@@ -10,5 +10,5 @@
     %p
       = _('Webhooks allow you to trigger a URL if, for example, new code is pushed or a new issue is created. You can configure webhooks to listen for specific events like pushes, issues or merge requests. Group webhooks will apply to all projects in a group, allowing you to standardize webhook functionality across your entire group.')
       = link_to _('Read more'), help_page_path('user/project/integrations/webhooks.md'), target: '_blank'
-    .prepend-top-15
+    .gl-mt-5
       = render 'shared/promotions/promotion_link_project'