NotificationInterruptStateProvider: suppress peek/pulse when app suspended

If an app is suspended in focus mode, we should suppress peek and pulse;
otherwise, the notifications may *immediately* peek or pulse when focus
mode ends.

Modify the old NotificationInterruptStateProvider to suppress
interruptions from suspended apps in canAlertCommon (which covers peek,
pulse, and bubble) instead of just shouldBubbleUp.

Note that, despite touching code in the visual interruptions refactor,
this change is *not* related to or flagged by the refactor's feature
flag; this is a long-standing omission in our interruption logic, not a
bug in the refactored code.

Bug: 329620290
Flag: NA
Test: atest NotificationInterruptStateProviderWrapperTest
Change-Id: Icbe9bcbb4ccba4870e42ee51f244cf2e15e095ed