prevent crashes from some addons

[silentbil]

when a Stremio addon is installed, its manifest is fetched from the network, converted to AddonManifest (which contains a list of AddonResource objects), and persisted to disk. When the app restarts and loads those
saved addons, Gson deserializes the stored JSON back into AddonResource objects — and if the original manifest had no types field (some addons omit it), Gson sets types to null despite the Kotlin type saying List.

So it crashes specifically when:

1. The user has at least one installed addon whose manifest has a missing/null types field
2. They navigate to a movie or episode and the app calls getStreamAddons() to figure out which addons support that content type
3. supportsResourceType(resource.types, ...) is called with that null list → NPE

An addon with a fully valid manifest (always includes "types": [...]) would never trigger it. It only hits users who installed certain addons that return incomplete manifests.