[FIX] website_sale, website_quote: pay now confirmation email

When configuring the payment acquirer with the confirmation
`at_pay_now`, meaning the sale order has to be
confirmed when clicking on the "Pay now" button, instead
of waiting for the payment confirmation,
the confirmation email wasn't not sent.

opw-665697

addons/website_quote/controllers/main.py

@@ -258,6 +258,6 @@ class sale_quote(http.Controller):
 
         # confirm the quotation
         if tx.acquirer_id.auto_confirm == 'at_pay_now':
-            request.registry['sale.order'].action_button_confirm(cr, SUPERUSER_ID, [order.id], context=request.context)
+            request.registry['sale.order'].action_button_confirm(cr, SUPERUSER_ID, [order.id], context=dict(request.context, send_email=True))
 
         return tx_id

addons/website_sale/controllers/main.py

@@ -780,7 +780,7 @@ class website_sale(http.Controller):
 
         # confirm the quotation
         if tx.acquirer_id.auto_confirm == 'at_pay_now':
-            request.registry['sale.order'].action_button_confirm(cr, SUPERUSER_ID, [order.id], context=request.context)
+            request.registry['sale.order'].action_button_confirm(cr, SUPERUSER_ID, [order.id], context=dict(request.context, send_email=True))
 
         return tx_id