SubmissionListComponent filter field should return results regardless of page size

[jhobz]

One implementation of this could be to programmatically change the page size to 5000 (if not already) on keyup, but this would fire off a much larger request than actually necessary.

Another alternative is to have the filter be added as a query and fire off a request on keyup (respecting current page size setting). This would obviously need some amount of debouncing while the user is still typing. Drawback is obviously slower search.