streamline js formatDate function

website/chatui/Views/Home/Index.cshtml

@@ -235,11 +235,8 @@
  chatContainer.scrollTop = chatContainer.scrollHeight;
  }
 
- function formatDate(date) {
- const h = "0" + date.getHours();
- const m = "0" + date.getMinutes();
-
- return `${h.slice(-2)}:${m.slice(-2)}`;
+ function formatTime(date) {
+ return date.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
  }
 
  function escapeHTML(str) {