To fill forms using behat is slow

Currently when we fill a form using behat we expand all the fieldsets and all the Show more... links, not all forms have fieldsets to expand nor show more links. On fieldsets case is hard to avoid the "wait until the CSS appears" as the JS that converts them to collapsible/expandable links requires time to run, but the find_all() Show more... link don't need to wait that much as we already did it for the fieldsets.

This would be a good performance improvement as almost each feature at some point is filling a form and we will avoid the default timeout (6 seconds) for each form without Show more... links.