[E2E] Add status bar color for DialogWhenLarge theme

DialogWhenLarge theme did not specify a color for the status bar,
leaving the status bar transparent (revealing the window bg color).
This CL added the status bar color for v28+.

Before: https://screenshot.googleplex.com/9knQEP6yrCHLS7L

After (just focus on the status bar)
https://screenshot.googleplex.com/e3abhuQoxsipY9F Dialog form:
https://screenshot.googleplex.com/t2MDd4rWv2mjrgW

Bug: 392918939
Fixed: 398066380
Change-Id: If2a6e7da2e4d9fac45411b6ceb30bc8cddbf95a9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6289587
Reviewed-by: Sinan Sahin <sinansahin@google.com>
Reviewed-by: Charles Hager <clhager@google.com>
Commit-Queue: Charles Hager <clhager@google.com>
Auto-Submit: Wenyu Fu <wenyufu@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1423312}