[74/n] Add configuration to LetterboxTaskInfoRepository

The Configuration from the TaskInfo is necessary for the
Rounded Corners View creation. The rounded corners Views
are created when the letterbox surfaces are created and
the TransitionObserver needs the Configuration from the
TaskInfo before the same is available in the
LetterboxTaskListenerAdapter. For this reason the
TaskInfoLetterboxLifecycleEventFactory now depends on the
LetterboxTaskInfoRepository and stores the Configuration.

Flag: EXEMPT Refactoring
Bug: 375124280
Test: atest WMShellUnitTests:LetterboxTaskListenerAdapterTest
Test: atest WMShellUnitTests:TaskInfoLetterboxLifecycleEventFactoryTest
Test: atest WMShellUnitTests:ActivityLetterboxLifecycleEventFactoryTest
Test: atest WMShellUnitTests:LetterboxTaskListenerAdapterTest

Change-Id: I3006d57e963a9cb1f5c112d83b718e354963007c