DOC-3355: Alert and confirm dialogs were not announced properly by some screen readers#4075

kemister85 merged 2 commits intofeature/8.5.0/DOC-3355tinymce/tinymce-docs:feature/8.5.0/DOC-3355from

feature/8.5.0/DOC-3355_TINY-13812tinymce/tinymce-docs:feature/8.5.0/DOC-3355_TINY-13812Copy head branch name to clipboard