Some minor fixes

Author: TheFehr

.gitignore

@@ -0,0 +1 @@
+graphql/*.graphql

classes/SchemaBuilder.php

@@ -7,6 +7,7 @@
 use Uit\Lighthouse\Models\Schema;
 use Uit\Lighthouse\Models\Settings;
 
+
 class SchemaBuilder
 {
     public static function build()

graphql/.gitkeep

@@ -10,8 +10,6 @@
 
 class ValidSchema implements Rule
 {
-    private $exception;
-
     /**
      * Determine if the validation rule passes.
      *
@@ -57,6 +55,6 @@ public function validate($attribute, $value, $params)
      */
     public function message()
     {
-        return $this->exception->getMessage();
+        return "The defined schema is not valid";
     }
 }