* Improve language dropdown UX
Several improvements to the language selector dropdown list.
* Apply suggestions from code review
Incorporate styling suggestion from @dennisreimann
Co-authored-by: d11n <mail@dennisreimann.de>
Co-authored-by: d11n <mail@dennisreimann.de>
* Auto-detect language on payment page
based on the requst Accept-Language header, which is the language you configured in your browser/OS and this 99.99% accurate
* Update BTCPayServer/Services/LanguageService.cs
Co-authored-by: britttttk <39231115+britttttk@users.noreply.github.com>
* Update BTCPayServer/Services/LanguageService.cs
Co-authored-by: Andrew Camilleri <evilkukka@gmail.com>
* Update BTCPayServer/Services/LanguageService.cs
Co-authored-by: Andrew Camilleri <evilkukka@gmail.com>
* Update BTCPayServer/Services/LanguageService.cs
Co-authored-by: Andrew Camilleri <evilkukka@gmail.com>
* Added loop for all locales in Accept-Language sorted by weight + check if know this language
* New public method so a unit test can be created for it
* Unit test for language detection
* Fix language service when not in browser context
* fall back to default lang
* Auto-detect setting + ?lang=auto support
* Added invoice param "?lang=auto" info to docs
* Using null-coalescing assignment operator
* Reduce complexity and http dependency in language service
Co-authored-by: britttttk <39231115+britttttk@users.noreply.github.com>
Co-authored-by: Andrew Camilleri <evilkukka@gmail.com>
