When opening a pull request, compare with the development branch, rather than master. The master branch is aimed at being equal to the latest stable release; meaning all staged changes need to go into the development branch.
To try and keep a consistent coding style, make sure ESLint gives your coding style a thumbs up.
If you're familiar with Jest and Enzyme then please update unit tests or introduce new ones where you can.
At minimum, please run the unit tests (yarn jest) to make sure that your changes don't have any unexpected effects on other components.