feat: hide authorizer for rental orders, auto-set sale type

Rental orders no longer show the "Authorizer Required?" question or
the Authorizer field. The sale type is automatically set to 'Rentals'
when creating or confirming a rental order. Validation logic also
skips authorizer checks for rental sale type.

Made-with: Cursor

fusion_poynt/views/poynt_terminal_views.xml

@@ -105,6 +105,7 @@
               name="Poynt Terminals"
               parent="account.root_payment_menu"
               action="action_poynt_terminal"
-              sequence="15"/>
+              sequence="15"
+              groups="fusion_poynt.group_fusion_poynt_user"/>
 
 </odoo>