Immediately add shiny custom message handler

Author: cpsievert

js/chat/chat.ts

@@ -492,15 +492,14 @@ customElements.define(CHAT_MESSAGES_TAG, ChatMessages);
 customElements.define(CHAT_INPUT_TAG, ChatInput);
 customElements.define(CHAT_CONTAINER_TAG, ChatContainer);
 
-$(function () {
-  Shiny.addCustomMessageHandler(
-    "shinyChatMessage",
-    function (message: ShinyChatMessage) {
-      const evt = new CustomEvent(message.handler, {
-        detail: message.obj,
-      });
-      const el = document.getElementById(message.id);
-      el?.dispatchEvent(evt);
-    }
-  );
-});
+
+Shiny.addCustomMessageHandler(
+  "shinyChatMessage",
+  function (message: ShinyChatMessage) {
+    const evt = new CustomEvent(message.handler, {
+      detail: message.obj,
+    });
+    const el = document.getElementById(message.id);
+    el?.dispatchEvent(evt);
+  }
+);