Minor - replace login URL + fix yaml files

config/packages/framework.yaml

@@ -25,4 +25,3 @@ framework:
     assets:
         json_manifest_path: '%kernel.project_dir%/public/build/manifest.json'
     annotations: true
-    translator: ~

config/packages/oneup_flysystem.yaml

@@ -15,4 +15,4 @@ oneup_flysystem:
             visibility: private
             cache: ~
             alias: ~
-            mount: ~
+            mount: ~

src/ThemeBundle/Resources/views/Sidebar/login.html.twig

@@ -1,6 +1,6 @@
 {{ locale_switcher(null, null, 'ChamiloCoreBundle:Admin:switcher_links.html.twig') }}
 
-<form class="form-horizontal" action="{{ path("sonata_user_admin_security_check") }}" method="post" name="formLogin" id="formLogin">
+<form class="form-horizontal" action="{{ path("fos_user_security_check") }}" method="post" name="formLogin" id="formLogin">
     <input type="hidden" name="_csrf_token" value="{{ csrf_token('authenticate') }}"/>
     <fieldset>
         <div class="input-group">