[FIX] web_editor: correct typo translation simple html widget
[FIX] web_editor: correct typo translation simple html widget

fixes #8698

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