[Settings containment] Add Material Slider for Page Zoom

This patch completes the transition to a Material Design Slider for the
page zoom setting in Accessibility.

Key changes:
  - Introduced PageZoomSliderPreference to implement the new
    com.google.android.material.slider.Slider.
  - Updated AccessibilitySettings to conditionally use either the new
    PageZoomSliderPreference or the legacy PageZoomSeekbarPreference.
  - Modified XML layouts to include both the Slider and legacy SeekBar,
    with visibility controlled programmatically.
  - To ensure comprehensive test coverage and prevent regressions, the relevant
    instrumentation tests (AccessibilitySettingsPageZoomTest and
    PageZoomViewTest) have been refactored into parameterized tests.

Screen recording:
http://screencast/cast/NTA0NjY0MzcyMzMzNzcyOHw5MTNiYzA2YS1iNQ

Bug: 433576895, 439725777
Change-Id: Ib371862c18815171ece78181c1f07f6885948424
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6944566
Reviewed-by: Wenyu Fu <wenyufu@chromium.org>
Commit-Queue: Gazal Agarwal <agazal@google.com>
Auto-Submit: Gazal Agarwal <agazal@google.com>
Cr-Commit-Position: refs/heads/main@{#1517600}