On locale change update app name in window caption

Store the localeList that was active in system settings at the moment
of caching app resources.
Relayout window decor on locale change.

Fix: 352649989
Flag: com.android.window.flags.enable_desktop_windowing_mode
Test: manual and unit tests
Change-Id: I73bd89f913e155a73019e072ae60a313fd52ac30