test: Fix formatting in test file

Author: rhofkens

frontend/src/test-husky.ts

@@ -1,6 +1,6 @@
 // This is a test file to verify that Husky and lint-staged are working correctly
-const testFunction = ( ) => {
+const testFunction = () => {
   console.log('Hello, world!');
 };
 
-export default testFunction;
+export default testFunction;