Use by_type Filter in ::Search::Elastic::Queries methods

The following discussion from !159955 (merged) should be addressed:

• @maddievn started a discussion: (+1 comment)

  praise: I prefer having the type query explicit. For the other scopes it is added by ::Search::Elastic::Queries.by_simple_query_string or by_multi_match_query but here no_join_project is true so it's skipped. Maybe we should eventually move the type filter out of those methods and call it as by_type as well.