fix(overlay-mixin): remove scroll lock on ios and mac

[BogdanDiaconu97]

What I did

1. Removed css classes because I didn't find bugs related to inputs (maybe they were fixed in earlier versions)
2. Removed the test about this edge case
3. Removed unused imports

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Latest commit: 8c185ec

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[tlouisse]

Removed css classes because I didn't find bugs related to inputs (maybe they were fixed in earlier versions)
Removed the test about this edge case
Removed unused imports

Hey, it would be really great if we could remove this abstraction. For that, we need to be 100% sure that the problem does not occur in all Safari versions we support (we support latest three versions (that is 18, 17 and 16) so that older iOS versions are covered).
If it's still an issue on Safari, the fix will still be very valuable

About ~1.5 year ago @DannyMoerkerke worked on this and back then, it was still needed. (let's say we needed to support Safari 14/15 then). I hope he can provide us with the exact reproduction setup.

So, how can we confirm that it is not needed anymore?

• reproduce the issue on an older Safari version. Let's say v14.
• confirm that this issue has been resolved in Safari v16.

@BogdanDiaconu97 could you take a look at the above?