Update profile empty state

What does this MR do and why?

• Migrate incognito empty state to Pajamas component.
• Update illustrations.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Visit /admin/users/reported_user_22
2. Click [Edit]
3. Opt-in Private profile
4. Save changes

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1. Visit /admin/users/reported_user_8
2. Click [Impersonate]
3. Visit /reported_user_22
4. Stop impersonate

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1. Visit /admin/users/
2. Block Dave Crooks

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1. Visit /admin/users/reported_user_8
2. Click [Impersonate]
3. Visit /reported_user_22

#424397 (closed)