Summary: Ideally this would not be a "layout table" at all but for now, improve accessibility by * marking the table in `PHUIFormationView` as a non-data table via `role="presentation"` so most screenreader software will not output the table skeleton parts; see https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Reference/Roles/presentation_role * explicitly setting `aria-hidden="true"` on the `PHUIFormationResizerView` visual slider to completely hide it from screenreader software. Closes T16195 Test Plan: Go to http://phorge.localhost/D1, inspect the HTML table parameters. Or try some screenreader software on it and realize a small improvement. Reviewers: O1 Blessed Committers, valerio.bozzolan Reviewed By: O1 Blessed Committers, valerio.bozzolan Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno Maniphest Tasks: T16195 Differential Revision: https://we.phorge.it/D26221