Filter technician counts by ticket type in the embedded Agent dashboard

Service desks that use several ticket types see technician totals that mix everything together.

Offer per-user or per-team ticket-type filters on the Agent dashboard shown inside the PSA, for example incidents only for one technician, and incidents plus alerts for a NOC team.

Today: the Home page's filter bar and the Agent Performance workload filter do this in the web app; the embedded dashboard has neither.