[Backport] Fix swatch overflow issue

[JamieRuroc]

Description (*)

When dealing with multiple store views with different languages the swatch input fields become too small to use and they move off the screen with no way to get to them. This fix adds a min-width to the input fields and handles swatch overflow with a scrollbar.

Manual testing scenarios (*)

1. Add multiple store views and languages to your store.
2. Open an attribute page within the Backend (Stores > Product > "Attribute").
3. Add more store views / languages until overflow happens.

Backport for: #19932

[magento-engcom-team]

Hi @JamieRuroc. Thank you for your contribution
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[magento-cicd2]

All committers have signed the CLA.

[JamieRuroc]

@sidolov this version has also been updated, thank you.

[sidolov]

Hi @JamieRuroc , thank you for the update! We have the rule that all changes should be delivered to the 2.3-develop first, so, I added "on hold" label for this pull request right now and I'll remove it once #19932 will be merged.
Thank you!

[sidolov]

Hi @JamieRuroc , I am closing this PR because original was closed due to inactivity.
Please reopen and update if you wish to continue.
Thank you for the collaboration!

[ghost]

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