Add a take/limit param to the search_duplicates endpoint

Endpoint:

GET /api/v1/posts/search_duplicates

Issue:

The endpoint never sends back more than 4 suggestions. This might make sense for it's use case in the product lift app. However, I use the API with Intercom as a data connector to help Fin respond to users when they ask for new features or log bugs. Due to large amount of posts we have in product lift and duplicate term matching logic, often the ticket that relates to a users request is missed in the first 4 posts returned.


Something like top 25 would allow intercom to review more tickets increasing the likelihood of a match to the users request.