Lock focus in modal

[floflo0]

Type of Issue

• Bug
• Feature Request
• Documentation
• Other

Description

When a modal open, you can continue to interact with the page using keyboard. This can introduce bugs for example, the pizza admin you can modify an order after you've added.

Steps to Reproduce

• Go in the pizza admin
• Create an order
• Use Tab to focus the name field or a pizza field and change it

Expected Behavior

When a modal is opened, the user can only focus element in the modal.

Screenshots

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Additional Context

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