fix(helpdesk): wrap team ticket tables in scroll container for responsive

Table keeps its fixed column widths and becomes horizontally scrollable
on narrow viewports instead of breaking the layout.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

modules/helpdesk/web/css/helpdesk.css

@@ -145,6 +145,11 @@
     display: none;
   }
 
+  .helpdesk-team-table-scroll {
+    overflow-x: auto;
+  }
+
+  .helpdesk-team-widget > .helpdesk-team-table-scroll > .helpdesk-team-ticket-table,
   .helpdesk-team-widget > .helpdesk-team-ticket-table {
     border: none;
     border-radius: 0;