Add annotated screenshot for updated Refine A11y announcement.

This has been requested by l10n team. The team also finds annotations
better.

Screen: http://screen/5hS2fKXfgpmAv7W
Original bug: http://b/167229239
Bug: 1096131

Change-Id: I0aac8f04a1cd9fc1d9225410b4af103e59b7c6f2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2386493Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Tomasz Wiszkowski <ender@google.com>
Auto-Submit: Tomasz Wiszkowski <ender@google.com>
Cr-Commit-Position: refs/heads/master@{#803557}

chrome/browser/ui/android/strings/android_chrome_strings_grd/IDS_ACCESSIBILITY_OMNIBOX_BTN_REFINE.png.sha1

+1e096a2adbd6afad7ee36846f5e4bdb7eac31224
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