The current HCT notification uses NOTIFICATION_ID=1. The Settings app has a few other notifications also use NOTIFICATION_ID=1 like Bluetooth and Sim etc. When using the same NOTIFICATION_ID for a notification, it updates the existing notification, causing the original one to disappear. To avoid this, we use a unique NOTIFICATION_ID.
Bug: 388530317
Flag: EXEMPT resource only update
Test: manual
Test: atest HighContrastTextMigrationReceiverTest
Change-Id: Ieda6836190726b14cd3522f61e7992e5a5698231
ea305dc01e