Back-port of https://github.com/odoo/odoo/pull/130451 Adapt to 50vh instead of 95vh, as the button is quite in the middle of the page for small heights, 95vh is still too much. closes odoo/odoo#133193 X-original-commit: 9c3c44bcfd4bafd95428c8342abc917e0175f7e1 Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>