Apply fixes from StyleCI

Author: z-song

src/Grid.php

@@ -387,7 +387,7 @@ protected function addRelationColumn($name, $label = '')
             return $this;
         }
 
-        $name = ($this->shouldSnakeAttributes() ? Str::snake($relation) : $relation) .'.'.$column;
+        $name = ($this->shouldSnakeAttributes() ? Str::snake($relation) : $relation).'.'.$column;
 
         $this->model()->with($relation);
 

src/Traits/ShouldSnakeAttributes.php

@@ -15,4 +15,4 @@ public function shouldSnakeAttributes()
 
         return $class::$snakeAttributes;
     }
-}
+}