Remove prepend-top-4 CSS class

This removes the prepend-top-4 CSS class
and replaces it for gl-mt-2 utility class
from GitLab UI

app/assets/javascripts/boards/components/issue_card_inner.vue

@@ -169,7 +169,7 @@ export default {
         }}</a>
       </h4>
     </div>
-    <div v-if="showLabelFooter" class="board-card-labels prepend-top-4 d-flex flex-wrap">
+    <div v-if="showLabelFooter" class="board-card-labels gl-mt-2 d-flex flex-wrap">
       <template v-for="label in orderedLabels">
         <gl-label
           :key="label.id"

app/assets/javascripts/ci_variable_list/components/ci_variable_modal.vue

@@ -235,7 +235,7 @@ export default {
           <gl-link href="/help/ci/variables/README#protected-environment-variables">
             <gl-icon name="question" :size="12" />
           </gl-link>
-          <p class="prepend-top-4 text-secondary">
+          <p class="gl-mt-2 text-secondary">
             {{ __('Export variable to pipelines running on protected branches and tags only.') }}
           </p>
         </gl-form-checkbox>
@@ -249,7 +249,7 @@ export default {
           <gl-link href="/help/ci/variables/README#masked-variables">
             <gl-icon name="question" :size="12" />
           </gl-link>
-          <p class="prepend-top-4 gl-mb-0 text-secondary">
+          <p class="gl-mt-2 gl-mb-0 text-secondary">
             {{ __('Variable will be masked in job logs.') }}
             <span
               :class="{

app/assets/stylesheets/framework/common.scss

@@ -396,7 +396,6 @@ img.emoji {
   🚨 Do not use these classes — they are deprecated and being removed. 🚨
   See https://gitlab.com/gitlab-org/gitlab/-/issues/217418 for more details.
 **/
-.prepend-top-4 { margin-top: $gl-padding-4; }
 .prepend-top-5 { margin-top: 5px; }
 .prepend-top-10 { margin-top: 10px; }
 .prepend-top-15 { margin-top: 15px; }

ee/app/assets/javascripts/vue_shared/metrics_reports/grouped_metrics_reports_app.vue

@@ -94,7 +94,7 @@ export default {
           status="none"
           :status-icon-size="24"
           :component="$options.componentNames.MetricsReportsIssueBody"
-          class="gl-ml-2 prepend-top-4 gl-mb-3"
+          class="gl-ml-2 gl-mt-2 gl-mb-3"
         />
       </smart-virtual-list>
     </div>