Fix: window hide & show, toast error for llm (#249)

* fix window hide & show

* toast error when llm failed

enjoy/src/renderer/components/messages/assistant-message.tsx

@@ -11,6 +11,7 @@ import {
   SheetContent,
   SheetHeader,
   SheetClose,
+  toast,
 } from "@renderer/components/ui";
 import {
   SpeechPlayer,
@@ -70,6 +71,9 @@ export const AssistantMessageComponent = (props: {
       .then((speech) => {
         setSpeech(speech);
       })
+      .catch((err) => {
+        toast.error(err.message);
+      })
       .finally(() => {
         setSpeeching(false);
       });