Do not allow bouncer translation when scrimmed

We had special cases when the bouncer shouldn't be translated but that
doesn't really scale. It's much simpler to just check if it's being
scrimmed - because otherwse it mus be translated.

Change-Id: Ide0af6718f1792ef1a1e16fa39512a2b3a0ba8be
Bug: 78222122
Fixes: 78205990
Fixes: 78140990
Test: atest packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/KeyguardBouncerTest.java
Test: atest packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManagerTest.java
Test: go/sysui-bouncer-tests