Component 0 - Copy this React, Tailwind Component to your project

Create a Svelte component for a toast notification system that supports both brief and detailed messages. The toast should: Appear as a small notification initially, suitable for quick info (like "Order placed"). Expand smoothly when the message is longer or when the user clicks "Expand" to reveal more content (like detailed error logs or instructions). Support different types of notifications (success, error, info, warning) with corresponding colors and icons. Auto-dismiss after a few seconds for small messages but remain until manually closed for expanded/long messages. Be responsive, visually clean, and non-intrusive. Include transitions and accessibility support (ARIA roles, focus handling). Use TailwindCSS for styling and Svelte's built-in transitions where applicable.