properly handle mode changes

api/src/stampy_chat/chat.py

@@ -1,6 +1,6 @@
 from typing import Any, Callable, Dict, List
 
-from langchain.chains import LLMChain, OpenAIModerationChain, moderation
+from langchain.chains import LLMChain, OpenAIModerationChain
 from langchain.chat_models import ChatOpenAI
 from langchain.memory import ChatMessageHistory, ConversationSummaryBufferMemory
 from langchain.prompts import (

web/src/pages/playground.tsx

@@ -49,12 +49,9 @@ const Playground: NextPage = () => {
   // initial load
   useEffect(() => {
     const mode = (localStorage.getItem("chat_mode") as Mode) || "default";
+    updateSettings(makeSettings(router.query));
     setMode([mode, true]);
     setSessionId(crypto.randomUUID());
-  }, []);
-
-  useEffect(() => {
-    updateSettings(makeSettings(router.query));
   }, [updateSettings, router]);
 
   return (