update UIA ins/del

[stevefaulkner]

Closes #162

Updating values to reflect implementation

When tested with Edge on windows version 109.0.1518.55

LocalizedControlType: "insertion" and LocalizedControlType: "deletion"

currently listed in core AAM as
LocalizedControlType: "ins" and LocalizedControlType: "del"

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[spectranaut]

Thanks for this! Here is a WPT test update: web-platform-tests/wpt#38301

[benbeaudry]

Can we hold off a bit more before merging this PR? I'm awaiting a response from the Narrator and UIA teams. I'll get an answer tomorrow. I just want to validate what are the expectations.

[benbeaudry]

@stevefaulkner Thanks for your patience! UIA uses "Insertion Change" and "Deletion Change" as localized control types for ins and del. However, Chromium and Edge would prefer to keep exposing this one as "insertion" and "deletion" since it's shorter.

I believe the CoreAAM should reflect the UIA value rather than the Chromium/Edge. We do not plan to match this value, though.

Thanks for putting this together.

[spectranaut]

I believe the CoreAAM should reflect the UIA value rather than the Chromium/Edge. We do not plan to match this value, though.

hey @benbeaudry gotta say I'm a bit confused, shouldn't Chromium/Edge follow the UIA expectation? Will the appropriate information still get to assistive technologies who use UIA if Chromium/Edge surface "insertion" instead of "Insertion Change"?