Downloading Cover Image feature.

[kyoyacchi]

Describe your suggested feature

I think it would be good to have downloading cover image of LNs to device gallery feature. Like in Tachiyomi.

(TachiyomiSY)

Other details

No response

Acknowledgements

• [X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• [X] I have written a short but informative title.
• [X] If this is an issue with a source, I should be opening an issue in the sources repository.
• [X] I have updated the app to version 1.1.12.
• [X] I will fill out all of the requested information in this form.