FF98 OffscreenCanvasRenderingContext2D support added behind pref
FF98 added support for OffscreenCanvasRenderingContext2D in https://bugzilla.mozilla.org/show_bug.cgi?id=1746750. This just makes same thing visible on preview.
Other docs related to this can be tracked in https://github.com/mdn/content/issues/18772
@queengooborg This probably needs more work to specify why it is "partial" but it is strictly accurate for now.
@queengooborg Ping
This pull request has merge conflicts that must be resolved before it can be merged.
#17880 was merged which sets this feature to "105". As a result, this flag data is now irrelevant and doesn't need to be added. I'm going to close this PR accordingly.