:has selector (#236)

* test: failing tests for has pseudo
for #235

* test: isolate functionality has pseudo
for #235

* feature: implement `:has` selector
for #235

* refactor: reduce complexity with CssAttributeTokenBuilder and CssSelectorLexer

Implement ~ Subsequent-sibling (#231)

* Implement ~ Subsequent-sibling
fix #230

* composer update to fix PHPStan

* test: subsequent sibling spaces

* test: introduce main into selector

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Co-authored-by: Greg Bowler <greg@g105b.com>

Fix for PHP 8.4 (#227)

> Deprecated: Gt\CssXPath\Translator::preg_match_collated(): Implicitly marking parameter $transform as nullable is deprecated, the explicit nullable type must be used instead in ./phpgt/cssxpath/src/Translator.php on line 279

Implement 'equals starts with' ('^=') and 'equals or starts with hyph…

…enated' ('|=') selectors (#221)

* Improve detection of element in query

* style: reformat

* style: reformat

* test: multiple named selects

* Implement 'equals starts with' ('^=') and 'equals or starts with hyphenated' ('|=') selectors

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Co-authored-by: Tomáš Fedor <tomas.fedor3@gmail.com>
Co-authored-by: Greg Bowler <greg.bowler@g105b.com>

PHP 7.3 compatibility (#117)

* Improve typehint & match styleguide

* fix: checkbox with bracket name notation

* build: update correct versions

* syntax: remove typed properties for 7.3 compliance

Improve typehint & match styleguide (#69)

Correct use of continue within switch

Bugfix for selecting children of attribute selector

Fix #37 using regular expression instead of explode

Stable dependencies for v1