Implement PHP CS Fixer and a coding standard to follow (#471)

* Create PHP CS Fixer config and add to CI workflow

* Run php cs fixer on project

* Add newline at end of file

* Update to use PHP CS Fixer v3

* Run v3 config on project

* Run seperate config in CI

app/Http/Middleware/TrustProxies.php

@@ -1,8 +1,9 @@
 <?php
+
 namespace Crater\Http\Middleware;
 
-use Illuminate\Http\Request;
 use Fideloper\Proxy\TrustProxies as Middleware;
+use Illuminate\Http\Request;
 
 class TrustProxies extends Middleware
 {
@@ -12,6 +13,7 @@ class TrustProxies extends Middleware
      * @var array
      */
     protected $proxies;
+
     /**
      * The current proxy header mappings.
      *