filter_ems_data() - filter dates not working as expected

Issue found when using filter_ems_data() with specific date constraints - documentation here: https://github.com/bcgov/shinyrems/issues/132

From first glance: I think the issue is that the COLLECTION_START has h:m:s and to_date does not so the default is 00:00:00 which occurs before COLLECTION_START even if the y:m:d is the same

Start by locating filter_ems_data() in the rems package and reviewing the linked documentation in shinyrems issue 132. Reproduce filtering with matching start and end dates, inspect how their time components are handled, and confirm that date constraints include the intended records when the dates are equal.

Written by the indexing model from the issue text.