A simple animated chevron icon component that rotates 180° when an expanded state is active, commonly used for accordion and collapsible UI elements.
## Key Components
- **`ExpandChevronProps`** — Interface accepting:
- `expanded: boolean` — Controls rotation state of the chevron
- `className?: string` — Optional class overrides
- **`ExpandChevron`** — Client component rendering a `Chevron02DownIcon` with a smooth 200ms CSS transition
## Usage Example
```typescript
import { ExpandChevron } from "./expand-chevron"
// Collapsed state (chevron points down)
// Expanded state (chevron rotates 180° to point up)
// With custom class
```