* Add lang and hreflang for screen reader UX
I wanted to add `lang` and `hreflang` to the link element for translated languages. `Lang` is used by screen readers to switch language profiles to provide the correct accent and pronunciation.
>If you have multiple versions of a page for different languages or regions, tell Google about these different variations. Doing so will help Google Search point users to the most appropriate version of your page by language or region.
> Note that even without taking action, Google might still find alternate language versions of your page, but it is usually best for you to explicitly indicate your language- or region-specific pages.
Source: https://support.google.com/webmasters/answer/189077?hl=en
* add hrefLang and Lang attributes
* add alternate pages to head
* Apply suggestions from code review
Co-Authored-By: Alexey Pyltsyn <lex61rus@gmail.com>
* mark english hreflang as x-default
* make english the default on the languages page
* rethink default-x
* Added language selector page
* PR nits
* Fix typo in variable name
* Added language icon. Show search icon in mobile.
* Tweaked header alignment
* Split languages into 3 categories based on progress:
complete, partially translated, and needs contributors
* Lower-cased pt-* language codes
* Re-added locale sort
* Renamed 'Partially Translated' header to 'In Progress'
Monica Powell
George Véras Valentim
Brian Vaughn