MediaWiki 1.42, online doc. URLs, and fixes

[Derugon]

MediaWiki 1.42 is expected to be released in a few weeks, so this PR contains (supposedly) all type and JSdoc changes related to it. This release also comes with a JS documentation overall, with a lot of small description, type, and url changes, which makes this PR way bigger (and harder to review, I'm sorry, I recommend looking at changes commit by commit) than it should be.

This PR also contains some other changes (unrelated to 1.42), from oversights of previous PRs.

MediaWiki 1.42 update

Added:

• mw.tempUserCreated module
• mw.user.getFirstRegistration
• mw.util.isInfinity

Modified:

• new mw.Api().loadMessagesIfMissing now accepts a single string message key as argument
• default argument of mw.cookie.get is now explicitely typed (in JSdoc) with string|null, instead of any (breaking change)
• mw.loader.impl/implement/register/state are now annotated private
• mw.Map is no longer annotated private (and described as internal)
• body argument of new mw.Rest().post is now optional

Miscellaneous changes

• Add jquery.cookie module (which contains $.cookie, $.removeCookie)
  • oversight from #34
• Add missing mw.loader.addSource and mw.templates declarations
  • oversights from #36
• Make mw.libs and mw.widgets namespaces instead of records (breaking change)
  • so library and widget types can be specified in this package (or other ones)
• Add pluralRuleParser library
  • related to the modification above
• Add missing JSdoc to mw.experiments and mw.Rest.Options.ajax
  • oversight from #34
• Move namespace mw.errorLogger to its own file
  • was added in #36 and put with mw.log
  • on top of consistency reasons, these are two distinct set of functions with different purpose
• Fix mw.notify taking a JS global NotificationOptions as argument (not targetting the MediaWiki implementation) (breaking change)
• Sort members lexicographically
  • where it was not the case, namely in ColorUtil/mw.Api/mw.Rest interfaces and mw.template namespace

JSdoc update

• Some @typedef have been added to the original JSdoc in 1.42, either as file-local declarations or global declarations in the mw namespace, so update some interfaces to share similar names (and declaration location) with online types.
  • rename ApiOptions/ForeignApiOptions/ForeignRestOptions/RestOptions to mw.Api.Options/mw.ForeignApi.Options/mw.ForeignRest.Options/mw.Rest.Options and make all properties optional (breaking change)
    • ApiOptions/ForeignApiOptions/RestOptions were exported, so to prevent breaking things, exports are just deprecated for now
  • rename UserInfo to mw.Api.UserInfo (breaking change)
    • was exported from user.d.ts, so to prevent breaking things, the export is just deprecated for now
  • rename WatchStatus to mw.Api.WatchedPage
  • rename NotificationOptions to mw.notification.NotificationOptions
  • rename ResultInfo to ResponseMetaData (in searchSuggest.d.ts)
  • rename CompiledTemplate/Compiler to TemplateRenderer/TemplateCompiler (in template.d.ts)
    • also require that any template has a render method.
  • rename UriOptions to mw.Uri.UriOptions and make all properties optional
  • rename ImageUrlData to ResizeableThumbnailUrl (in util.d.ts)
  • add mw.Api.EditTransform
  • add mw.cookie.CookieOptions
  • add ResponseFunction (in searchSuggest.d.ts)
  • add TitleExistenceStore (in Title.d.ts)
• Fix various small inconsistencies with punctuation, links, indent, and code blocks, either from 1.42 updates to original JSdoc, or oversights from previous PRs.

URLs update

• Update doc.wikimedia.org URLs to new format
  • most of the URLs used in JSdoc are currently broken
  • URLs to undocumented (usually private) members are removed, since these did not link to anything
• Add missing doc.wikimedia.org URLs
  • documentation for mw.hook events is now generated, so also add URLs to their associated section
• Use Special:MyLanguage in URLs of wikis that use subpages for translations
  • mostly URLs to www.mediawiki.org
• Use {@link some-url …} syntax consistently in JSdoc
  • replace uses of […](some-url), <some-url>, or plain some-url