Set FontWeight.ExtraBold for bundle header title

 If bold text adjustment is enabled, titleMediumEmphasized needs FontWeight.ExtraBold
    because titleMediumEmphasized is already bold.
 (this proabaly should be changed by Compose...)

Flag: EXEMPT bugfix

Test: manual

Bug: 425501135
Change-Id: Idf675072ce13f228ba5c579d3e4c4e283436f379