LibWeb: Allow parsing of <quirky-color>

Author: https://github.com/Calme1709 🔰
Commit: 2bb40b615a
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/4791
Reviewed-by: https://github.com/tcl3 ✅

Libraries/LibWeb/CSS/Parser/ValueParsing.cpp

@@ -1936,7 +1936,7 @@ RefPtr<CSSStyleValue const> Parser::parse_color_value(TokenStream<ComponentValue
         }
         for (auto i = 1u; i < m_value_context.size() && quirky_color_allowed; i++) {
             quirky_color_allowed = m_value_context[i].visit(
-                [](PropertyID const& property_id) { return property_has_quirk(property_id, Quirk::UnitlessLength); },
+                [](PropertyID const& property_id) { return property_has_quirk(property_id, Quirk::HashlessHexColor); },
                 [](FunctionContext const&) { return false; },
                 [](DescriptorContext const&) { return false; });
         }