Before this commit
The quick create form view uses the new wowl form renderer, but
with the CSS style of the legacy form view.
This led to some issues, i.e. the width of some input fields
were ridiculously small.
After this commit
The quick create form view still uses the new form renderer, but with
the proper class "o_wowl_form_view" to ensure the proper style is
applied.
Part-of: odoo/odoo#94952