Few code standards. Remove composer vendor folder

solutions/ProjectEuler/104/solve.php

@@ -1,6 +1,6 @@
 <?php
 
-function pandigital($num) {
+function pandigital(int $num): bool {
 	for ($i = 1; $i <= 9; $i++) {
 		if(strpos($n,(string)$i) === false) {
 			return false;