minor #17788 [Form] Fix alphabetical order of imports (alexandre-daubois)

This PR was merged into the 5.4 branch.

Discussion
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[Form] Fix alphabetical order of imports

Commits
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2dfba6b [Form] Fix alphabetical order of imports

Author: javiereguiluz

components/form.rst

@@ -579,10 +579,10 @@ method:
 
     .. code-block:: php-standalone
 
-        use Symfony\Component\HttpFoundation\Request;
-        use Symfony\Component\HttpFoundation\RedirectResponse;
         use Symfony\Component\Form\Extension\Core\Type\DateType;
         use Symfony\Component\Form\Extension\Core\Type\TextType;
+        use Symfony\Component\HttpFoundation\RedirectResponse;
+        use Symfony\Component\HttpFoundation\Request;
 
         // ...