Import manga list

Ability to import a larger list of manga, so you don't have to add one title at a time.

Stupid example:

```

manga {

'title1': 'link to the supported site (MangaHub, MangaDex, etc)'

'title2': 'link to the supported site (MangaHub, MangaDex, etc)'

'title3': 'link to the supported site (MangaHub, MangaDex, etc)'

}

```