Update to 42.3

Web:

• Fix several issues relating to presentation of navigation among focusable descendants within ARIA grids and tables

• Improve support for description lists

• Fix SayAll presentation of time element inside link

• Fix presentation of the FluentUI react dialog (and any other dialog which has an ARIA document-role descendant

• Eliminate chattiness from newly-expanded/shown listbox

• Make cell ancestor presentation optional

In issue #253, Orca's failure to present cell ancestor information when tabbing among interactive descendants of a cell was reported as a bug. The fix for that bug was included in the stable (42.2) release. Multiple users have subsequently reported that this "fix" introduced unexpected/unwanted chattiness and requested that the presentation be configurable.

In order to accomplish configurability without introducing new settings (and strings, and UI), this presentation now respects the table-related options found on Orca's app-specific preferences for web browsers. Those options had been intended just for structural navigation within tables, but seem to be applicable here. Because they are enabled by default, users who find the ancestor information too chatty will need to opt out by disabling that presentation.

It is my hope that this solution meets everyone's needs. Feedback on the Orca mailing list and/or in gitlab is encouraged. If need be, a new stable release reverting the fix entirely will be done.

WebKitGtk:

• Fail gracefully when structural navigation commands are used in WebKitGtk 2.36.x (the collection interface won't be supported until 2.26.4)