As a developer
I can have components that use each typography variant
to make it a little easier to layout text

---

### Typical use
```
import { H1, H2, H3, Body, Caption } from '@hig/typography';

function MySpecialMessage() {
return (

```
H1.propTypes = {
// All the same propTypes except `variant`
fontWeight: PropTypes.oneOf(AVAILABLE_FONT_WEIGHTS)
align: PropTypes.oneOf(AVAILABLE_ALIGNMENTS),
}
```

- Variant components take same props as `Typography`, except for `variant`

Start by locating the @hig/typography package and its Typography entry point, then review how the H1, H2, H3, Body, and Caption variants are defined. Confirm that each helper exposes the Typography props except variant, supports the shown fontWeight and align props, and matches the requested usage examples.

Written by the indexing model from the issue text.