[table] Only apply sorting event on the first row of a table header (closes #1988780)
We use the new selectorHeaders from table-sorter 2.0.5
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.