Apply Laravel coding style

Shift automatically applies the Laravel coding style - which uses the PSR-12 coding style as a base with some minor additions.

You may customize the code style applied by configuring [Pint](https://laravel.com/docs/pint), [PHP CS Fixer](https://github.com/FriendsOfPHP/PHP-CS-Fixer), or [PHP CodeSniffer](https://github.com/squizlabs/PHP_CodeSniffer) for your project root.

For more information on customizing the code style applied by Shift, [watch this short video](https://laravelshift.com/videos/shift-code-style).

app/Http/Controllers/Common/CommonMailer.php

@@ -9,7 +9,7 @@ class CommonMailer
     public function setSmtpDriver($config)
     {
         try {
-            if (!$config) {
+            if (! $config) {
                 return false;
             }
             $https = [];
@@ -34,7 +34,7 @@ class CommonMailer
 
     public function setMailGunDriver($config)
     {
-        if (!$config) {
+        if (! $config) {
             return false;
         }