[FIX] sale_timesheet: remaining calculation in plan project
[FIX] sale_timesheet: remaining calculation in plan project

The computation is badly implemented. Wrong
data struture used at the wrong moment.
This commit fixes it: remaing hour in overview
is SOLD qty - DONE qty (sum of timesheets).

Task #1857652

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