refactor: we need to test whether we need to add those extensions as …

…well

as they aren't listed in the extensions config section by `xo` right away: https://www.npmjs.com/package/xo#extensions

.xo-config.cjs

@@ -1,6 +1,7 @@
 module.exports = {
 	prettier: true,
 	plugins: ['@db-ui'],
+	extensions: ['.js', '.jsx', '.mjs', '.cjs', '.tsx', '.ts']
 	overrides: [
 		{
 			files: ['./showcases/angular-showcase/**'],