[Expressive design] Update ZeroStatePreference widget

- Apply icon tint when setting icon;
- Update title style in layout.

Bug: 418888725
Test: visual
Flag: EXEMPT resource update

Change-Id: I2c7b9b35fd6a34b273269d8a2c68edd8bdaf9a49
Signed-off-by: Stefan Maftei <smaftei@google.com>