[Quick Share v2] Correct High Viz 10 > 5 mins when QSv2 disabled

While Quick Share v2 is disabled,
High Visibility page no longer shows that it's available for 10 minutes
when enabled by clicking the Quick Share quick settings icon. It says
it's available for 5.

Tested: manually via DUT.
Fixed: 395179635
Change-Id: Ife3dcfc02765facdac250041e6e82050959b8b72
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6255495
Commit-Queue: Brando Socarras <brandosocarras@google.com>
Reviewed-by: Daniel Classon <dclasson@google.com>
Cr-Commit-Position: refs/heads/main@{#1420184}