Quick Svelte Assessment

Create a quick demo that implements a modal and a global store to manage a list of usernames.

Requirements

• Modal should be able to be opened from any page.
• Modal should update a global store holding all usernames.
• One of the pages should display the list of usernames.
• Stub out the modal submit handler as if it will call a REST API later.
• You cannot use form actions (must be treated as an SPA).