Log AppJankStats Widget Category and State

This change maps the widget categories and states reported by the system
to the atom enum value and logs them to statsd.

Bug: 374607503
Flag: android.app.jank.detailed_app_jank_metrics_logging_enabled
Test: atest CoreAppJankTestCases
Change-Id: Ic43f82193d7750b6c0a2a6e9b80fa32595f5cfb3