minor #13149 Adjusts description of the csrf_token extension (jschaedl)

This PR was merged into the 4.4 branch.

Discussion
----------

Adjusts description of the csrf_token extension

I think using `...used to generate the token...` here leads to misunderstanding.

The `intention` argument is not used to generate the csrf token. It is used to create a namespace string used to store and identify the token in the storage implementation.

Commits
-------

44df761 Adjusts description of the csrf_token extension

Author: javiereguiluz

reference/twig_reference.rst

@@ -131,7 +131,7 @@ csrf_token
     {{ csrf_token(intention) }}
 
 ``intention``
-    **type**: ``string`` - an arbitrary string used to generate the token value.
+    **type**: ``string`` - an arbitrary string used to identify the token value.
 
 Renders a CSRF token. Use this function if you want :doc:`CSRF protection </security/csrf>`
 in a regular HTML form not managed by the Symfony Form component.