Fix incorrect webextension compat info

[Rob--W]

Summary

Fix incorrect BCD support info, and added impl_url to some entries that have a bug tracking their implementation.

Test results and supporting details

alarms: drop confusing compat info about past timers. The version_added/version_removed ranges are hard to interpret. The affected versions are ancient and the use of past timers is very unusual. Hence, the simplest way to resolve the ambiguity is to drop the note. Ref: https://bugzilla.mozilla.org/show_bug.cgi?id=1478694

clipboard API disabled in Firefox for Android:
https://searchfox.org/mozilla-central/rev/0e7394a77cdbe1df5e04a1d4171d6da67b57fa17/toolkit/components/extensions/parent/ext-clipboard.js#25-31

contextualIdentities not functional in Firefox for Android: https://bugzilla.mozilla.org/show_bug.cgi?id=1638878

cookies: partitionKey supported in Chrome 119+: crbug.com/1225444 https://chromium.googlesource.com/chromium/src/+/45052d18b0f8dd0eb1a7492dc92acb8ba96aff64

dns: API restricted to Chrome dev
https://chromium.googlesource.com/chromium/src/+/603f4f94bc1d9bc363483bca56d31db492912d1a/extensions/common/api/_permission_features.json#231 "This API is only available in Chrome Dev. There are no foreseeable
plans to move this API from the dev channel into Chrome stable."
https://developer.chrome.com/docs/extensions/reference/api/dns#availability

events: although it is more of an abstract interface, the methods are supported in Firefox, e.g. as seen at:
https://searchfox.org/mozilla-central/rev/0e7394a77cdbe1df5e04a1d4171d6da67b57fa17/toolkit/components/extensions/schemas/events.json#45

tabs: tabs.detectLanguage supported in Firefox for Android 118+: https://bugzilla.mozilla.org/show_bug.cgi?id=1817779

manifest/commands: _execute_browser_action introduced in: https://bugzilla.mozilla.org/show_bug.cgi?id=1246034

manifest/commands: _execute_page_action introduced in: https://bugzilla.mozilla.org/show_bug.cgi?id=1246035

manifest/background: Safari non-persistent background support mentioned in https://developer.apple.com/documentation/safari-release-notes/safari-14_1-release-notes

manifest/content_scripts: match_origin_as_fallback added in: https://chromium.googlesource.com/chromium/src/+/53396b76e9375 https://chromium.googlesource.com/chromium/src/+/53396b76e9375/chrome/VERSION

manifest/content_security_policy: isolated_world never shipped anywhere: https://bugzilla.mozilla.org/show_bug.cgi?id=1594232#c5

Related issues

N/A

[Rob--W]

Note: most of it was manually curated.

The contextualIdentities entry was bulk-edited automatically with the following snippet:

node -e 'fs=require("node:fs");d=fs.readFileSync("api/contextualIdentities.json","utf-8");d=JSON.parse(d);function r(o){for (let i in o) {if(i=="firefox_android"){o[i]={version_added:false,impl_url:"https://bugzil.la/1638878",notes:"contextualIdentities is defined but not functional in Firefox for Android."};}else if(typeof o[i]=="object"&&o[i])r(o[i])}};r(d);fs.writeFileSync("api/contextualIdentities.json", JSON.stringify(d, null, 2) + "\n" )'

[rebloor]

@Rob--W

• let me know if you need me to merge this once you've reviewed my suggestions
• should I cross-check the additions/removals against the documentation?

[rebloor]

Suggested change

	"notes": "The object is defined but any attempt to read or modify the setting throws."
	"notes": "The object is defined but any attempt to read or modify the setting throws an exception."

[Rob--W]

@Rob--W

* let me know if you need me to merge this once you've reviewed my suggestions

Thanks for the suggestions. To make sure that I don't miss any, I applied the suggested change (wrap contextualIdentities in <code>-tags in a scripted fashion, with a modification of the script I posted at #22337 (comment))

* should I cross-check the additions/removals against the documentation?

I've already done so, so it's not needed to check again.

[Rob--W]

I've rebased to the main branch, please merge if you don't see any more issues. Then I'll rebase #22338 to make CI green.

[rebloor]

@Rob--W done, let me know if you want me to take a look at #22338 when it's ready