Merge pull request #24801 from overleaf/mf-swap-trial-cta-tear-down

[web] Tear down `swap-trial-cta` and use the `enabled` variant as the default

GitOrigin-RevId: 2ba2f5c864908871797420aff976918a4e224ad3

services/web/frontend/stylesheets/app/plans.less

@@ -391,7 +391,7 @@
     }
 
     &.plans-new-table-icon-cta-cell,
-    &.plans-subheader-monthly-cta-swapped {
+    &.plans-subheader-monthly-cta {
       vertical-align: bottom;
     }
   }

services/web/frontend/stylesheets/bootstrap-5/pages/plans.scss

@@ -405,7 +405,7 @@ $z-index-group-member-picker-list: 1;
     }
 
     &.plans-new-table-icon-cta-cell,
-    &.plans-subheader-monthly-cta-swapped {
+    &.plans-subheader-monthly-cta {
       vertical-align: bottom;
     }
   }