Do not use query parameters in process filter page

Follow up of #570 (closed)

URL parameters transmission from a selection page is very confusing because (re)loading a page with URL parameters will do an implicit PATCH with is very misleading.

Prefer do a POST and a PATCH before the redirection from the navigation.
Process/Filter component should use process attributes only to fill initial filters values.

Also, there is no error handling. See #588 (closed)