This change ensures that `display: inline-grid` is considered an atomic
inline
- Add `is_atomic_inline_level()` logic to `box_fragment.rs` to improve
accuracy.
- Update `stacking_context.rs` to use the new `is_atomic_inline_level()`
method instead of the one from stylo.
- Update `repeat-auto-fill-005.html` test expectation.
- Remove .ini expectations for tests that are no longer failing.
Testing: covered by WPT
Fixes: #35310
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Signed-off-by: Barigbue <barigbuenbira@gmail.com>
