Function formatDuration

formatDuration(minutes: number): string
Format duration in minutes to a human-readable string.
Parameters
- minutes: number
Returns string
Example
```
formatDuration(150) // "2h 30m"
formatDuration(45)  // "45m"
formatDuration(0)   // "0m"
```
- Defined in packages/react-assignments/src/utils/activityUtils.ts:25