Update JavaScript screenshot goldens from CI for the real glass pipeline

The JavaScript port now renders the genuine Liquid Glass material and
selection lens (and the refined gradient stroke), so the iOS-theme screenshots
legitimately changed. Goldens are taken from the javascript-ui-tests artifact
of CI run 29512910274 (commit 5131184) -- the runner's own Chromium
rendering -- because locally-rendered pixels do not match the CI environment.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: shai-almog