[FIX] account: rename Suppliers into Vendors
[FIX] account: rename Suppliers into Vendors

For more consistency, as the menu item calling the corresponding action
is named "Vendors".

closes odoo/odoo#38783

Signed-off-by: Simon Lejeune (sle) <1969d8dff896674c2d819e813f5e88ca826229ab@openerp.com>

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo