fix: handle the case when zip entry is undefined

src/utils/zip.ts

@@ -17,6 +17,11 @@ export const readContentOfZipEntry = async <T extends OutputType>(
   // Get the zip entry corresponding to the specified file path
   const zipEntry = zip.files[filePath]
 
+  if (!zipEntry) {
+    toast.error(`Couldn't find file in zip archive at ${filePath}`)
+    return null
+  }
+
   // Read the content of the zip entry asynchronously
   const fileContent = await zipEntry.async(outputType).catch((err) => {
     // Handle any errors that occur during the read operation