Add navigator.languages

[toastal]

Prerequisites

• Before opening a pull request, please check the HTML standard (https://dom.spec.whatwg.org/). If it doesn't appear in this spec, it may be present in the spec for one of the other purescript-web projects. Although MDN is a great resource, it is not a suitable reference for this project.

Found it: https://html.spec.whatwg.org/multipage/system-state.html#language-preferences
It appears all of the Navigator needs to be updated on MDN.

Description of the change

Languages, plural, gives the developer a list of languages the use prefers be the fallback. Personally I'd rather fallback from en-US to en-CA instead of en-GB and would take Spanish before French and this feature lets users tell the application their preferences (sadly at the cost of browser fingerprinting). This list is also the same list for the Accept-Language HTTP header the client sends to the server, but maybe a SPA would want to know as well since it will talk to the server a lot less.

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Checklist:

• Added the change to the changelog's "Unreleased" section with a reference to this PR (e.g. "- Made a change (#0000)")
• Linked any existing issues or proposals that this pull request should close
• Updated or added relevant documentation
• Added a test for the contribution (if applicable)

[JordanMartinez]

Thanks! Not sure if we need to say anything about the 94% not being 100%, but perhaps that should be left to the developer to check themselves as that number can easily change over time. Besides this is FFI, so they likely should be checking.

[garyb]

Thanks! Not sure if we need to say anything about the 94% not being 100%, but perhaps that should be left to the developer to check themselves as that number can easily change over time. Besides this is FFI, so they likely should be checking.

I'd agree with that, these libraries are just meant to implement the standards even if unfortunately they're not entirely supported.