Use a more stable display::Display::id_ on Windows

Use DISPLAYCONFIG_PATH_TARGET_INFO::id without the adapterId.

This should make per-monitor ids stable across device restarts.
Anecdotally, `id` is constant on restart, but `adapterId` changes.
Both are constant across browser sessions and config changes.

Bug: 40233353
Test: win10-multiscreen-fyi-rel; GetDisplayInfosFromSystem() uniqueness CHECK.
Change-Id: I6e5e67f36057e65a0cb30229817c5ed02222c38a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5540221
Commit-Queue: Mike Wasserman <msw@chromium.org>
Reviewed-by: Brad Triebwasser <btriebw@chromium.org>
Reviewed-by: Robert Liao <robliao@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1302793}