[views-ax] Migrating kName attribute to new system in ui/message_center

This CL migrates the kName value for all files in
ui/messages_center/views/* whenever its value should change, rather
than querying the value and computing it only when needed.

This CL eliminates the direct assignment of the kName attribute within
the View::GetAccessibleNodeData method. Instead, it introduces a
mechanism to update the kName attribute in the accessibility cache
when any attribute that contributes to the accessible name undergoes a
change. This approach ensures that the accessible name remains
up-to-date in the accessibility cache.

This CL is part of the ViewsAX project:
https://docs.google.com/document/d/1Ku7HOyDsiZem1yaV6ccZ-tz3lO2XR2NEcm8HjR6d-VY/edit#heading=h.ke1u3utej413

Bug: 325137417
Change-Id: I1bfb2c10377207197d12b61bae7846cd2b0d8265
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5665386
Reviewed-by: Jacques Newman <janewman@microsoft.com>
Reviewed-by: Javier Contreras <javiercon@microsoft.com>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Benjamin Beaudry <benjamin.beaudry@microsoft.com>
Commit-Queue: Ashish Kumar <ashishkum@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#1334007}