[Files SWA]: Use resource ID to set the app title.

Do not bake in an English name into the app title. Instead fetch the
resource ID and fetch the right translation for it.

Bug: b/192415850
Change-Id: If8bfbdaf29fd95f2916ec573f99e6f4e7e7ceb04
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3189352
Reviewed-by: Jiewei Qian  <qjw@chromium.org>
Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Commit-Queue: Bo Majewski <majewski@chromium.org>
Cr-Commit-Position: refs/heads/main@{#925644}