Merge pull request #19508 from overleaf/ds-buy-now-btn-new-design

Plans page - Plans card buy now btn matching the style to Figma

GitOrigin-RevId: a518540d2aa5870b0fb90671c7785b90378ae74f

services/web/frontend/stylesheets/app/plans/plans-new-design.less

@@ -547,6 +547,12 @@
       margin-top: var(--spacing-06);
     }
 
+    .additional-link-buy-btn-container {
+      text-align: center;
+      width: 100%;
+      padding-top: var(--spacing-04);
+    }
+
     .highlighted-plans-card {
       border: 2px solid var(--green-50) !important;
     }