Rename pagination input #2724

In the pagination directive, to define how many rows should be displayed per page, we need to pass a value via the 'first' parameter. This parameter name doesn't actually convey its intended meaning. I suggest that 'limit' or 'take' would be better alternatives.

type Query {
 posts(
 "Limits number of fetched items."
 first: Int! # limit or take instead of first 
 "The offset from which items are returned."
 page: Int
 ): PostPaginator
}