chore: fix ts syntax (#283)

.changeset/green-cheetahs-behave.md

+---
+"create-llama": patch
+---
+
+Fix errors in building the frontend

templates/types/streaming/nextjs/app/components/ui/chat/chat-message/codeblock.tsx

@@ -68,7 +68,7 @@ const CodeBlock: FC<Props> = memo(({ language, value }) => {
       3,
       true,
     )}${fileExtension}`;
-    const fileName = window.prompt("Enter file name" || "", suggestedFileName);
+    const fileName = window.prompt("Enter file name", suggestedFileName);
 
     if (!fileName) {
       // User pressed cancel on prompt.