:has() pseudo-class defaults to extended CSS rule

[pkrayzy]

Adguard / SafariConverterLib treats all :has() pseudo-class rules as advanced extended CSS rules, however Safari and WebKit natively support CSS Selectors Level 4, including :has().

Rules prefixed with ## should default to a standard CSS rule, while more complicated and nested use of :has() prefixed with #?# or #$?# should be treated as an advanced extended CSS selector rule.

[Versty]

@pkrayzy During the development process we have discovered the bug in the WebKit that prevented us from making changes related to the :has() pseudo-class rules. This bug has recently been fixed, so we will continue to work on this improvement.

Follow up the progress: AdguardTeam/SafariConverterLib#43

[pkrayzy]

@Versty Thanks so much!