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/Requests/CompanyRequest.php

@@ -1,4 +1,5 @@
 <?php
+
 namespace Crater\Http\Requests;
 
 use Illuminate\Foundation\Http\FormRequest;
@@ -24,11 +25,11 @@ class CompanyRequest extends FormRequest
     {
         return [
             'name' => [
-                'required'
+                'required',
             ],
             'country_id' => [
-                'required'
-            ]
+                'required',
+            ],
         ];
     }
 }