Build the update status string at the client side.

Windows machine can be configured in a way such at user's preferred
language is different from the system preferred language. Thus it's
better to build the UI strings in the client process context (which
runs as the console user) than the service process context (which
runs as the system user).

Bug: 375219035
Change-Id: I3ec9ef689d47d2813938faeddf73a765e7b91abd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6039498
Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
Reviewed-by: Joshua Pawlicki <waffles@chromium.org>
Commit-Queue: Xiaoling Bao <xiaolingbao@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1387049}