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Removed completely any custom elements polyfill

- Previously we only used the defaultExtractor
  which only looks at words.
- We can greatly increase the non-determinism of this
  by using the bon-a-fide HTML extractor.
- This will prevent issues like [this][1].

[1]: https://gitlab.com/gitlab-org/gitlab-foss/-/jobs/1316947507

Update package

Also update `extendedWrapper` to return `ErrorWrapper` if no elements
are found

Changelog: other
Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

This adds virtual scrolling to the diffs app so that we can render
a lot of diff files in a very fast and performant way.
Doing virtual scrolling also helps us manage our memory usage a lot
as we aren't rendering a lot of components into the DOM.

Locally we get a lot of performance gains (close to 20s improvement
to the TBT time).

For now this is behind a feature flag. The feature flag is there so that this
can be merged but not enabled until we are sure this is something we
want.

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/326773

The node-sass project is deprecated in favor of sass, written in dart.
Apparently node-sass doesn't compile for node@16, erroring out for
community contributors and team members alike. It seems like there is
not a quick fix available for this:

https://github.com/sass/node-sass/issues/3077

Given that the project is deprecated and we do not really use it for
anything time sensitive, we can surely just replace node-sass with sass.

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/60006