Aliaksandr Kalenik a9b8840a82 LibWeb: Add fast path for animated style properties update ...

Patch up existing style properties instead of using the regular style
invalidation path, which requires rule matching for each element in the
invalidated subtree.

- !important properties: this change introduces a flag used to skip the
  update of animated properties overridden by !important.
- inherited animated properties: for now, these are invalidated by
  traversing animated element's subtree to propagate the update.
- StyleProperties has a separate array for animated properties that
  allows the removal animated properties after animation has ended,
  without requiring full style invalidation.

2024-03-16 09:49:40 +01:00

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