[LFC] Take into account text-align-last when calculating line align mode
Pull request: https://github.com/WebKit/WebKit/pull/1130
Pull request: https://github.com/WebKit/WebKit/pull/1169
Committed r295239 (251294@main): <https://commits.webkit.org/251294@main> Reviewed commits have been landed. Closing PR #1169 and removing active labels.
<rdar://problem/94369104>