Merge pull request #1622 from edwinhuish/fix_multi_app_config

修复多应用的配置里的 Exception stub 的命名空间

src/Console/stubs/config.stub

@@ -341,7 +341,7 @@ return [
     |--------------------------------------------------------------------------
     |
     */
-    'exception_handler' => Dcat\Admin\Http\Exception\Handler::class,
+    'exception_handler' => Dcat\Admin\Exception\Handler::class,
 
     /*
     |--------------------------------------------------------------------------