New filter APIs

[komal-sai-yral]

Switch to new filter APIs using cursor mode. Here are the contracts:

type NsfwFilter = variant { IncludeNsfw; OnlyNsfw; ExcludeNsfw };

  get_top_posts_aggregated_from_canisters_on_this_network_for_home_feed_cursor : (
      nat64,
      nat64,
      opt bool,
      opt PostStatus,
      opt NsfwFilter,
    ) -> (Result) query;
  get_top_posts_aggregated_from_canisters_on_this_network_for_hot_or_not_feed_cursor : (
      nat64,
      nat64,
      opt bool,
      opt PostStatus,
      opt NsfwFilter,
    ) -> (Result) query;

Can use either is_nsfw or NsfwFilter (values as enum above) . Preferably use NsfwFilter as is_nsfw will be deprecated later.

[rupansh-sekar-yral]

fixed by #116