[5.x] Add filtering to form submissions listing

[ryanmitchell]

This PR adds filtering to the form submissions view:

I've re-used the same approach from the entry listing views. This means I've needed to add the form submissions to an ItemQueryBuilder to allow the QueriesFilters trait to work.

If #6455 were to merge this could be removed in favour of using the query submission builder, alongside updating the search and order by methods.

As the date is included as a filter, this should be able to close #6135

[duncanmcclean]

If #6455 were to merge this could be removed in favour of using the query submission builder, alongside updating the search and order by methods.

I think we should probably wait until #6455 has been merged so we can use the "real" query builder. I'll mark this as a draft in the meantime.