Comply with new eslint rules

assets/scripts/customizer.js

@@ -1,5 +1,5 @@
 import $ from 'jquery';
 
 wp.customize('blogname', (value) => {
-  value.bind((to) => $('.brand').text(to));
+  value.bind(to => $('.brand').text(to));
 });

assets/scripts/util/camelCase.js

@@ -1,5 +1,5 @@
 // the most terrible camelizer on the internet, guaranteed!
-export default (str) => `${str.charAt(0).toLowerCase()}${str.replace(/[\W_]/g, '|').split('|')
+export default str => `${str.charAt(0).toLowerCase()}${str.replace(/[\W_]/g, '|').split('|')
   .map(part => `${part.charAt(0).toUpperCase()}${part.slice(1)}`)
   .join('')
   .slice(1)}`;