Add sorting for manga

[zesky18]

I would like the ability to sort manga, particularly by most recently read (though really you can add more if you like).

This is useful since I have a couple of manga series at any give time, and, for manga that are somewhere down the list, it can be a little annoying to have to search for them every time I come back to reading again.

[Gnathonic]

I've implemented this in my fork.

Recents first, then unstarted series, last is the completed series. All are sorted by title as a secondary.

I'm closing in on being able to PR back into this repo. I made a lot of improvements. The fork as a whole is working well, but I won't PR it back till I'm sure all the features I don't normally use are still in working order.

You can use my version here https://mokuro-reader-tan.vercel.app/ Please report any bugs you find to my fork https://github.com/Gnathonic/mokuro-reader