Remove dependency on Nette\Http\Request

[delacry]

Hi, there was a problem when you try to use this exntesion with php runtimes like swoole/roadrunner/falconphp, because you can't have Nette Request object, but you need your own implementation of IRequest that will switch its variables and state between requests.

The problem wasn't only Header resolver itself, because if you are not using it, extension will try to create it in DI and it fails in constructor, so extension could not work at all, so I moved one method for resolving locale from Nette Request to Header resolver.

[aleswita]

jelikoz nas to nezbavi zavislosti na Nette/Http, tak bych se asi nebal udelat neco takoveho

return (new Request(
	$this->httpRequest->getUrl(),
	headers: $this->httpRequest->getHeaders()
))->detectLanguage($langs);

nez kopirovat kod

[delacry]

Great, that looks better, I did it in one line because of come codesniffer errors (tabs were used): nevermind.. fixed.

45 | ERROR | [x] Multi-line function call not indented correctly; expected 8 spaces but found 12 (PSR2.Methods.FunctionCallSignature.Indent)
45 | ERROR | [x] Closing parenthesis of a multi-line function call must be on a line by itself (PSR2.Methods.FunctionCallSignature.CloseBracketLine)