Add a way to message caregivers who have worked with a client from the client's page

Rather than going back to the Caregivers page to send SMS messages, it would be helpful to message caregivers while on the client's page. Having a list that can be filtered by hours (to avoid messageing aides who have only covered the client a few times) or dates (to only message caregivers currently working w that client) would be great. Even just being able to view a list of the client's aides would be a great help, rather than clicking through historical schedules or running a report.