Refresh PeopleSpace tiles earlier to avoid recomposition

This CL moves the logic used to refresh the PeopleSpace tiles on RESUME
events so that the first time it is triggered happens before our first
composition, to avoid composing and redrawing this screen twice, which
reduces GPU consumption. See b/276871425 for details.

Test: See go/sysui-memory-comparison
Bug: 276871425
Change-Id: I0feec96dc526b38f5bec0a7da29bd2fbe4dc2d7e