Show HN: A 1KB zero-dependency relative time formatter for UI systems

```

import { formatRelative } from '@appents/human-time';

const past = new Date(Date.now() - 5 * 60_000); formatRelative(past); // "5m ago"

const future = new Date(Date.now() + 3 * 3_600_000); formatRelative(future); // "In 3h"

```

And

```

import { formatRelativeLong } from '@appents/human-time';

const past = new Date(Date.now() - 5 * 60_000); formatRelativeLong(past); // "5 minutes ago"

```