Analysis task page may not load on hidden platform and chart pane should not show a platform when it's hidden.
<rdar://problem/100648187>
Pull request: https://github.com/WebKit/WebKit/pull/10125
Committed 260325@main (e87820646ce9): <https://commits.webkit.org/260325@main> Reviewed commits have been landed. Closing PR #10125 and removing active labels.