v4.0.3

[compare changes](https://github.com/shader-effects-inc/shaders/compare/v4.0.2...v4.0.3)

### Features

- Introduced the `Satin` shader ([#16](https://github.com/shader-effects-inc/shaders/pull/16))

### Fixes

- Animations skip frames on 60Hz displays ([#15](https://github.com/shader-effects-inc/shaders/pull/15))
- Update ESLint config to include test paths and clean up test imports ([#17](https://github.com/shader-effects-inc/shaders/pull/17))

### Contributors

- Simon Le Marchant ([@marchantweb](https://github.com/marchantweb))
- Sebastian Danielsson ([@sebdanielsson](https://github.com/sebdanielsson))