Fix chiamata api

SteUp.Shared/Components/SingleElements/Modal/ExceptionModal/ModalError.razor

@@ -3,14 +3,14 @@
         @if (IsWarning)
         {
             <div class="exception-header mb-2">
-                <i class="ri-error-warning-line"></i>
+                <i class="ri-error-warning-line warning-icon"></i>
                 <span>Attenzione</span>
             </div>
         }
         else
         {
             <div class="exception-header mb-2">
-                <i class="ri-emotion-unhappy-line"></i>
+                <i class="ri-emotion-unhappy-line error-icon"></i>
                 <span>Ops</span>
             </div>
         }