Since c8ca9da7bc, the tooltips in the
charts can come out of the container and make the scrollbar appear,
which is not desired. In this commit, we fix that.
task-3568895
closes odoo/odoo#139987
X-original-commit: c1f08c60b7272e5a30951c53b67427e2f205b722
Signed-off-by: Mathieu Duckerts-Antoine (dam) <dam@odoo.com>