Template Tag Function Editor (#67)

![CleanShot 2024-08-15 at 16 53
09@2x](https://github.com/user-attachments/assets/8c0eb655-1daf-4dc8-811f-f606c770f7dc)

src-web/components/IsDev.tsx

@@ -7,7 +7,7 @@ interface Props {
 
 export function IsDev({ children }: Props) {
   const appInfo = useAppInfo();
-  if (!appInfo?.isDev) {
+  if (!appInfo.isDev) {
     return null;
   }