[backup/portable] properly write the eid numrange generator (the eid is no more a sequence)
Bump format version to 1.1.
Related to #4870338
Add some entities
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As manager, you can access to entity creation forms by using the `site management`_ page.
.. _`site management`: manage
As regular user, the index page or the action box may propose some links to create entities according to the context.