[Theme] Reverting removed container class

[eduard13]

Description (*)

This PR reverts the following #25309 PR, as it has introduced many other style issues, related to Ui.

Fixed Issues (if relevant)

N/A

Manual testing scenarios (*)

1. Navigate to Stores / Product [Attributes] / Add New
2. Select Swatch Type

Expected view

Questions or comments

Basically the following issue #20379 should be opened, and another fix should be provided.
Related comment: #25309 (comment)

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

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[dmytro-ch]

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[dmytro-ch]

At first, I was thinking of trying to keep both "form-inline" and "admin__scope-old" CSS classes assigned to this container. However, after performing a brief investigation, the admin.scope.col.wrap seems to be a too generic place for applying the fix relevant to the forms block.

@eduard13, thank you for your input!

[engcom-Alfa]

✔️ QA Passed

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