Move PHP-CS-Fixer cache file out of the project to avoid IDE annoyance

Author: PowerKiKi

.gitignore

@@ -1,5 +1,4 @@
 /nbproject/
 /vendor/
-/.php_cs.cache
 .DS_Store
-.idea
+.idea

.php_cs.dist

@@ -12,6 +12,7 @@ $finder = PhpCsFixer\Finder::create()
 return PhpCsFixer\Config::create()
     ->setRiskyAllowed(true)
     ->setFinder($finder)
+    ->setCacheFile(sys_get_temp_dir() . '/php-cs-fixer' . preg_replace('~\W~', '-', __DIR__))
     ->setRules([
         'align_multiline_comment' => true,
         'array_syntax' => ['syntax' => 'short'],