Restore proper nav buttons translation when taskbar is recreated

Since mTaskbarInAppDisplayProgressMultiProp is set by various states
that are hard to query in init() (e.g. state of all apps, -1, widgets,
etc.), we store the last mTaskbarInAppDisplayProgressMultiProp in the
TaskbarSharedState and restore those values in init().

Also updated some debug logs in the dump.

Test: manual: from home screen, swipe down to quick settings and toggle
Dark theme, ensure nav buttons don't translate; do the same but over
launcher all apps
Flag: none
Fixes: 267325761

Change-Id: Ib8e6778582ed39c674cd3c1e95312e673659f6a7