Merge pull request #5624 from Laravel-Backpack/fix-string-wrapping

remove raw order, let eloquent process the ordering

src/app/Library/CrudPanel/Traits/Query.php

@@ -178,7 +178,7 @@ public function orderByWithPrefix($column_name, $column_direction = 'asc')
         $column_direction = strtolower($column_direction);
 
         if ($this->query->getQuery()->joins !== null) {
-            return $this->query->orderByRaw("\"{$this->model->getTableWithPrefix()}\".\"{$column_name}\" {$column_direction}");
+            return $this->query->orderBy("{$this->model->getTableWithPrefix()}.{$column_name}", $column_direction);
         }
 
         return $this->query->orderBy($column_name, $column_direction);