[BUGFIX] Fix rounded tabpanel navigation box

Resources/Private/Templates/Bootstrap5/Standard/Tabs.html

-<ul class="nav nav-pills bg-light p-2 rounded d-none d-sm-flex" id="pills-tab-df-tabs" role="tablist">
+<ul class="nav nav-pills bg-light p-2 rounded-5 d-none d-sm-flex" id="pills-tab-df-tabs" role="tablist">
     <f:for each="{tabElements}" as="data_item" iteration="iterator">
         <li class="nav-item" role="presentation">
             <button class="nav-link {f:if(condition: iterator.isFirst, then: 'active')}"