Implement chapter list prototype

Add chapter list view to the MediaItemUIDetailedView. It's guarded
by: 1) chrome_os_ash build flag && 2)BackgroundListening flag

More details of this ChapterItemView will be added in the following
up cls.

Screenshot with mock data:
https://screenshot.googleplex.com/6oheKe7ahcoHjju

Bug: b/327508008
Change-Id: I6d6d046075b630d4940b648e3101f19455bb4094
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5337324


Reviewed-by: Andrew Xu <andrewxu@chromium.org>
Reviewed-by: Tommy Steimel <steimel@chromium.org>
Commit-Queue: Jiaming Cheng <jiamingc@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1270493}