chat fix

public/plugins/chat/chat.css

@@ -129,6 +129,14 @@
     align-items: center;
     justify-content: center;
     padding: 24px;
+    user-select: none;
+    -webkit-user-select: none;
+}
+.chat-empty > p {
+    margin: 0;
+}
+#chat-empty-start {
+    margin-top: 20px;
 }
 
 /* ── Thread view ── */