React style guide

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Follow the normal JavaScript style guide. We generally try to follow the official React tutorials and guides. Please default to them as a source-of-truth.

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Syntax

Prefer to export a single React component

Every .tsx file should ideally export a single React component. This is for testability and composition; it's easier to write Storybook stories and it's clearer where the breaks in functionality are.

Note that the file can still define multiple components, it just shouldn't export more than one.