Issue title: Japscan failed again
 Issue body: > **From:** HakuNeko User

**Version:** [6.1.7@fa9106](https://github.com/manga-download/hakuneko/commits/fa9106)

Thank you for you job ! But there are no amelioration with japscan...it always failed..

<details><summary>What has been done?</summary>



</details>
 Comments: 
 Comment 0: I also observed that the japscan site still does not work unfortunately. The download goes wrong from the start. 
I tested with the Linux version of HakuNeko and I observe the same problem ...

Thank you again for your work!
 Comment 1: See #1451 
Try to increase throttling for JapScan in settings
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