Andreas Kling d7f5939e46 LibWeb: Move custom element state invalidation into a helper ...

Element.cpp still spelled out the :defined pseudo-class invalidation set
when custom element state changed. Move that selector policy into
CustomElementInvalidator.

This keeps Element responsible for the state transition, while
CSS::Invalidation owns the affected selector feature.

2026-04-29 15:47:23 +02:00

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