fix: async validation loader in AddressInput

[schmanu]

What it solves

Fixes async validation for AddressInput

Resolves #1203

How this PR fixes it

Shows a loading spinner while the form is validating.

How to test it

• Find a address input with slow validation or add a way of throttling the validation (Slow resolving promise, network throttling)

[github-actions]

Branch preview

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https://fix_address_input_async_validation--webcore.review-web-core.5afe.dev

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Type	Occurrences	Fixable
Errors	0	0
Warnings	0	0
Ignored	0	N/A

• Result: ✅ success
• Annotations: 0 total

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^{Report generated by eslint-plus-action}

[DiogoSoaress]

Cherry on top 🍒 would be both spinners being sync but not worth the extra effort I guess.

[schmanu]

@DiogoSoaress
The two spinners not in sync should also be the case when resolving ENS names. As it already displayed two spinners then.

I didnt find an easy way to achieve that. There is nothing in the MUI docs / examples.