flutter

### Page URL

https://docs.flutter.dev/404

### Page source

https://github.com/flutter/website/blob/main/src/content/404.html

### Describe the problem

flutter sdk is not downloading

### Expected fix

_No response_

### Additional context

_No response_

### I would like to fix this problem.

- [x] I will try and fix this problem on docs.flutter.dev.