Differentiate read/unread voicemails in the NUI Voicemail by bolding.

Voicemails that are unread in the annotated call log table will show up as bold. Voicemails that are marked as read will show up as normal (non bold). A follow up CL will update the underlying table and mark them as read when a viewholder is expanded.

Bug: 64882313,70900195
Test: Unit Tests
PiperOrigin-RevId: 179872932
Change-Id: I927711aa8c6c6324e43f519c14a58b5f2b8e7ca9
3 files changed