Auto-Skip downloading chapters when chapter is not-downloadable instead of halting the entire download

[qunYp3dZSyLjoEoEg]

Describe your suggested feature

The(/My) problem is that sometimes when I want to download mangas from ninemanga-english, certain chapters are non-downloadable as the picture-host is unresolvable. Now, if other hosts had all chapters that wouldn't be a problem, however, ninemanga usually has the most complete collection of available chapters from the sources accessible with Kotatsu, so I think one can see why a person would want to download from there.

Anyways, it often happens though that for example chapter 1-29 is downloadable, chapter 30 isn't, and then chapter 31-xx is downloadable again. Example being The dangers in my heart (Boku No Kokoro No Yaiba Yatsu). One can just do download all, see where it stalls, abort the download and then manually select the next few chapter after the non-dl one and do that until one has everything but the non-dl chapters downloaded, but that is kinda tedious.

What I would propose is maybe having a setting where you can toggle that if a chapter cannot be downloaded, it is skipped and the next chapter will be attempted to be downloaded. Often enough not having these chapters isn't the end of the world with ninemanga as they commonly are extra-chapters and not the main story.

Maybe also 1) make it so that it tries 2-3 times to download a chapter/image before skipping, 2) to include a notification "chapter 30 wasn't able to be downloaded" and 3) instead of the icon that a chapter has been downloaded next to it when viewing the chapter-list of a downloaded manga make a red x beside it to make it more visible that it hasn't been downloaded if the main idea gets incorporated. (last few things are just ideas though)

Acknowledgements

• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.