Update screenshot for IDS_LOGIN_SYNC_CONSENT_SCREEN_TITLE_WITH_DEVICE

The old screenshot was taking on a linux-chromeos build, so it
said "Personalize your Chrome device". This is confusing, since it
isn't clear if "device" should be part of the translated string.

Update screenshot so it shows "Personalize your Chromebook", which
is a better example of how it would appear. (The string already
contains a DEVICE_TYPE placeholder.)

Bug: b/159155720
Change-Id: If041bafcec392cfd0b896b528208865ae9c80500
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2284965
Auto-Submit: James Cook <jamescook@chromium.org>
Commit-Queue: James Cook <jamescook@chromium.org>
Commit-Queue: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#785856}