Apply inline validation to admin deletion protection settings

What does this MR do and why?

This MR contains the conflicts in applying the validation and copy the code provided by @peterhegman in the #364133 (closed)

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

Before	After

How to set up and validate locally

1. Go to Admin route. (dashboard)
2. Go to Settings => General => Visibility and access controls => Deletion protection.
3. Type 91.
4. Scroll down until the Save changes button.
5. Return back to the field to see the validation.