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/Models/Currency.php

@@ -1,4 +1,5 @@
 <?php
+
 namespace Crater\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
@@ -15,6 +16,6 @@ class Currency extends Model
         'precision',
         'thousand_separator',
         'decimal_separator',
-        'position'
+        'position',
     ];
 }