Add svgHeight prop use

app/assets/javascripts/static_site_editor/pages/success.vue

@@ -85,6 +85,7 @@ export default {
       :primary-button-text="savedContentMeta && $options.primaryButtonText"
       :primary-button-link="savedContentMeta && savedContentMeta.mergeRequest.url"
       :svg-path="mergeRequestsIllustrationPath"
+      :svg-height="146"
     >
       <template #description>
         <div v-if="savedContentMeta">

spec/frontend/static_site_editor/pages/success_spec.js

@@ -66,6 +66,7 @@ describe('~/static_site_editor/pages/success.vue', () => {
         primaryButtonLink: savedContentMeta.mergeRequest.url,
         title: 'Your merge request has been created',
         svgPath: mergeRequestsIllustrationPath,
+        svgHeight: 146,
       });
     });