[FIX] account: bank reconciliation widget: support the use of taxes properly

Before that, v13 tax model was totally ignored, leading to erratic behavior (and no tags at all on lines).

closes odoo/odoo#40980

X-original-commit: b105c8b176fb73c0e37e51961390a43eaefe1eea
Signed-off-by: oco-odoo <oco-odoo@users.noreply.github.com>