Fixed bug in handling of empty numbers in new call log.

Empty numbers were not being inserted into PhoneLookupHistory because the URI "content://.../PhoneLookupHistory/" is treated the same as "content://.../PhoneLookupHistory" (w/o the trailing slash). This caused the update (i.e. replace) operation to incorrectly update all rows in the table when it should have updated a single row.

The fix for this was to switch to a query parameter, so the empty number URI now looks like "content://.../PhoneLookupHistory?number="

Also improved some logging while debugging this problem.

Bug: 71866050
Test: unit and manual
PiperOrigin-RevId: 181659081
Change-Id: Idec4fb77e74920cd5485620b0a997db03aa8ff9b