WKWebView alert window is truncating title
<rdar://106327229>
Pull request: https://github.com/WebKit/WebKit/pull/12474
Committed 262909@main (d02c05b38621): <https://commits.webkit.org/262909@main> Reviewed commits have been landed. Closing PR #12474 and removing active labels.
Re-opened since this is blocked by bug 255401
Reverted in https://commits.webkit.org/262918@main because it broke macCatalyst builds.
Pull request: https://github.com/WebKit/WebKit/pull/12733
Committed 262950@main (c9e96f6a7b80): <https://commits.webkit.org/262950@main> Reviewed commits have been landed. Closing PR #12733 and removing active labels.