[ENG-10866] Duplicate text displayed on the My Registrations page (#964)

- Ticket: https://openscience.atlassian.net/browse/ENG-10866
- Feature flag: n/a

## Summary of Changes
1. Fixed bug with tabs in the my registrations.

Author: nsemets

src/app/features/registries/pages/my-registrations/my-registrations.component.html

@@ -58,7 +58,7 @@
           </section>
         </p-tabpanel>
 
-        <p-tabpanel [value]="RegistrationTab.Submitted" class="flex flex-column gap-4 flex-1">
+        <p-tabpanel [value]="RegistrationTab.Submitted">
           <section class="flex flex-column gap-4 flex-1">
             @if (isSubmittedRegistrationsLoading()) {
               @for (item of skeletons; track $index) {