[FIX] web: Contact form modal not responsive

When creating a contact from "Contacts & Adresses" in res.partner view form.
The radio button (field "type") was not responsive.

opw:706338

addons/web/static/src/less/form_view_layout.less

@@ -168,7 +168,9 @@
 
     // Flex fields
     .o_form_field_many2one, .o_form_field_radio, .o_form_field_many2manytags, .o_form_field_percent_pie, .o_form_field_monetary, .o_form_field_binary_file {
+    @media (min-width: @screen-sm-min) {
         .o-inline-flex-display();
+    }
         > span, > button {
             .o-flex(0, 0, auto);
         }