[Glitch] Enforce stricter rules for Typescript files

Port c8181eb0a4 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/components/icon.tsx

@@ -10,5 +10,3 @@ type Props = {
 }
 export const Icon: React.FC<Props> = ({ id, className, fixedWidth, ...other }) =>
   <i className={classNames('fa', `fa-${id}`, className, { 'fa-fw': fixedWidth })} {...other} />;
-
-export default Icon;