[IMP] website_quote : add action to update quotation button

Hello,

Task : Update Quote button, bug in backend
I have solved issue of disappearing left sidebar after clicking update button in quotation.

More Details
Task: http://www2.odoo.com/web#id=8969&view_type=form&model=project.task&menu_id=3942&action=327
Pad: https://pad.odoo.com/p/r.3W8WpDlnZmxkoGmg

Thank You.