[Chipbar] Update font weight and spacing after button.

Bug: 267821684
Test: media push to receiver flow w/ app icon (light & dark theme)
Test: media pull to phone flow w/ generic icon (light & dark theme)
Test: active unlock flow (light & dark theme)

Change-Id: I7f11c26e55454aa614747aab65d330b33114269c
4 files changed