Lint: always have parentheses for arrow function arguments
When typing function arguments in TypeScript, parentheses is are needed, no matter the number of arguments of an arrow function. The prettier and eslint rules should be changes to reflect this.
Incorrect:
export const slugify = input => slugifyString(input.replace('/', ' '), '_');
Correct:
export const slugify = (input) => slugifyString(input.replace('/', ' '), '_');