[FIX] base: change mongolian language configuration
[FIX] base: change mongolian language configuration

Change decimal point, thousand separator and date format for Mongolian
language

closes odoo/odoo#37934

Signed-off-by: Martin Trigaux (mat) <cc7c5be316e48d137cbb549833b85d91034d799d@odoo.com>

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