Improve bugreport logging of zen rule activation changes

The previous format conflated rule owner with rule activator, but beginning with modes_ui user activation of app-owned rules is possible via SystemUI.

Note that we did have the uid so it was possible to decode the correct flow in the previous logs too, but this is hopefully much clearer.

Fixes: 371578616
Test: atest ZenModeHelperTest
Flag: EXEMPT minor logging change
Change-Id: Ia00ec806f6edb565404acade23df1069c1adfe40