Adjust pipeline setup

Should probably do some caching of node_modules so we don't have to do npm i for both the linting and test parts.

frontend/src/components/button/index.tsx

@@ -19,3 +19,4 @@ export const Button = styled.a<ButtonProps>`
   }
   background: ${(props) => props.theme.colors.main};
 `
+export default Button