Recommend WPForms

[ineagu]

@cristian-ungureanu

we should recommend wpforms with tgm instead of pirateforms.

I think in the contact section where we now have something :

if (!shortcode) insert piraforms, it could be : if (!shortcode && pirateforms_installed) echo [pirateforms] else if !shortcode && pirateforms_not_installed) echo [wpforms] else echo [shortcode]

This should not break current or new users behaviour :)