Update resources when config update of sysUiContext

Before WindowContextInfoItem, the SystemUiContext was updated directly.
After that, the change will be post to the main thread first, which
lead to DisplayPolicy#onConfigurationChanged and other methods to
get obosolete values from SystemUiContext's resources.
They still assume SystemUiContext would be updated directly.

This CL track SystemUiContext config update with ComponentCallbacks,
and changes to update fields from SystemUiContext Resurces there.

Bug: 384428048
Test: atest DisplayContentTest DisplayPolicyTest
Test: atest FrameworksCoreTests:ContextTest
Flag: com.android.window.flags.track_system_ui_context_before_wms

Change-Id: I8e1596a0f5f0fdd429d9fa66bb1da2625a1bdab2