[FIX] account: invoice report taxes and discount align
[FIX] account: invoice report taxes and discount align

These columns were mis-aligned
compared to the other columns.

Besides, this copy the behavior in the sale
order report, done in revision
71c624163c98cbc1bb24ecb6fa407c4622e7d349.

opw-650235

bplancher/odoo,bplancher/odoo,Elico-Corp/odoo_OCB,ygol/odoo,microcom/odoo,microcom/odoo,sysadminmatmoz/OCB,storm-computers/odoo,hip-odoo/odoo,optima-ict/odoo,bplancher/odoo,laslabs/odoo,ygol/odoo,dfang/odoo,Elico-Corp/odoo_OCB,ygol/odoo,laslabs/odoo,optima-ict/odoo,sysadminmatmoz/OCB,microcom/odoo,optima-ict/odoo,hip-odoo/odoo,stephen144/odoo,stephen144/odoo,Elico-Corp/odoo_OCB,syci/OCB,dfang/odoo,ygol/odoo,laslabs/odoo,sysadminmatmoz/OCB,dfang/odoo,syci/OCB,microcom/odoo,syci/OCB,laslabs/odoo,laslabs/odoo,syci/OCB,optima-ict/odoo,syci/OCB,storm-computers/odoo,dfang/odoo,hip-odoo/odoo,ygol/odoo,stephen144/odoo,optima-ict/odoo,dfang/odoo,hip-odoo/odoo,sysadminmatmoz/OCB,stephen144/odoo,hip-odoo/odoo,stephen144/odoo,microcom/odoo,optima-ict/odoo,storm-computers/odoo,storm-computers/odoo,syci/OCB,stephen144/odoo,bplancher/odoo,microcom/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,storm-computers/odoo,bplancher/odoo,dfang/odoo,sysadminmatmoz/OCB,hip-odoo/odoo,ygol/odoo,bplancher/odoo,ygol/odoo,sysadminmatmoz/OCB,Elico-Corp/odoo_OCB,sysadminmatmoz/OCB,storm-computers/odoo,laslabs/odoo