adding data for straggler events

[chrisdavidmills]

As per mdn/sprints#1318

Some of these were difficult to find much about. An explanation of each follows:

• api.HTMLDetails​Element.toggle_event — this has no associated ontoggle property to copy off, so I ended up just copying the data for the HTMLDetailsElement as a whole. I did some local testing on macOS, and the event seemed to work in all the places I tested.
• api.PaymentResponse.payerdetailchange_event — this had an old-style compat table left over in the event page, so I used that data (the old style table is still there, hidden using <div class=hidden></div>), also copying the data over to onpayerdetailchange and creating that data point too.
• api.SharedWorkerGlobalScope.connect_event — easy; I just copied this from the available onconnect data
• api.Window.clipboardchange — this is a very new event. There is no equivalent onclipboardchange handler specified at present, afaict, and it doesn't seem to work anywhere (I tested it in Chrome/Fx/Safari/Opera). So I put all the data as false.
• api.HTMLElement.beforeinput_event — this is also very new, and does not appear to have an equivalent on... handler property. I tested it, and it didn't work in Firefox, but did in Chrome/Safari/Opera, so I have filled those in as true and guessed a bit at the mobile equivalents.

[chrisdavidmills]

@Elchi3 another one for the events ref to try and fit in the release ;-)

[Elchi3]

Makes sense to me, thanks for the detailed explanations.
We can always improve this data as follow-ups, if needed.

https://developer.mozilla.org/en-US/docs/Web/API/PaymentResponse/payerdetail_event is at the wrong location, but you have the mdn_url correct in this PR, so I will merge this, but please move the mdn page.

[chrisdavidmills]

https://developer.mozilla.org/en-US/docs/Web/API/PaymentResponse/payerdetail_event is at the wrong location, but you have the mdn_url correct in this PR, so I will merge this, but please move the mdn page.

Ooops! I've moved it now. Thanks so much for the quick turnaround on this.