Make sure that "View Binary Data" is accessible

[weinand]

Testing #141347

I'm not sure how accessible the "inline on hover" action "View Binary Data" is:

@Isidon what's your your POV?

It might be necessary to install the "View Binary Data" command as a context menu action on the variable.

[connor4312]

It's structured like other inline actions and is tab-accessible. Let me know if there's anything else to do here.

[weinand]

@isidorn please let us know whether the "inline on hover" action "View Binary Data" is accessible.

[isidorn]

@weinand yes, all inline actions are accessible. I just tried it out and my biggest concern is regarding the hex view which is not very accessible. For example up/down do not work in the hex value and I think we could use better aria labels.
@lramos15 have you been thinking about the hex view from the accessibility perspective?

[lramos15]

@isidorn The hex view attempts to do its best to be accessible. Arrow key navigation should work. @connor4312 Just rewrote it in React versus normal vanilla DOM APIs so some things may have been lost.