Fix UdfpsView not appearing on BP rotate

Changes UdfpsView window priority to `TYPE_NAVIGATION_BAR_PANEL` from
`TYPE_KEYGUARD_DIALOG` to prevent issues with BP.

Test: atest SystemUITests:com.android.systemui.biometrics
Test: Tested manually by rotating in BP
Bug: 282973622
Change-Id: I47eacca2cf2dee1af17933957dda21b28466c400