unfollowManga function Null safety
Implementation
Future<MangaCheck> unfollowManga(String token, String mangaId) async {
var unencodedPath = '/manga/$mangaId/unfollow';
final uri = 'https://$authority$unencodedPath';
var response = await http.delete(Uri.parse(uri), headers: {
HttpHeaders.contentTypeHeader: 'application/json',
HttpHeaders.authorizationHeader: 'Bearer $token'
});
return MangaCheck.fromJson(jsonDecode(response.body));
}