Context: Clean up

  - Updates WebUI URL and configurations from 'accessibility-annotator-info' to 'personal-context-notice'.
  - Renames localized string keys, methods and suite names that did not get renamed in the past cls.

Bug: b:517456967, b:511147704
Change-Id: I103c25a91425bbef4501827c1dc702c944438adf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7882615
Commit-Queue: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Norge Vizcay <vizcay@google.com>
Reviewed-by: Rainhard Findling <rainhard@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Foromo Daniel Soromou <koretadaniel@chromium.org>
Auto-Submit: Kamila Hasanbega <hkamila@google.com>
Cr-Commit-Position: refs/heads/main@{#1638796}