improve multiple trackers search through jackett

[iam4x]

Right now we search through all indexers into jackett, this is not recommended way to do and there's room for improvement, see how tornzab is implemented for sonarr (https://github.com/Sonarr/Sonarr/wiki/Implementing-a-Torznab-indexer)

• user as multiple torrent websites added in jackett
• search through each and stop when we have one compatible result to download

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• get the configured indexers into jackett => http://localhost:9117/api/v2.0/indexers?configured=true