Improve bookmark form accessibility (#1116)

* Bump Django

* Render error messages in English

* Remove unused USE_L10N option

* Associate errors and help texts with form fields

* Make checkbox inputs clickable

* Change cancel button text

* Fix tests

requirements.txt

@@ -2,7 +2,7 @@
 # This file is autogenerated by pip-compile with Python 3.12
 # by the following command:
 #
-#    pip-compile requirements.in
+#    pip-compile
 #
 asgiref==3.8.1
     # via django
@@ -27,7 +27,7 @@ cryptography==43.0.1
     #   josepy
     #   mozilla-django-oidc
     #   pyopenssl
-django==5.1.10
+django==5.2.3
     # via
     #   -r requirements.in
     #   django-registration