Due to a change in Bootstrap, the tablepicker, the toolbar and the q-web
branching selector were hidden by modal dialogs.
In Odoo 15.0, the included Bootstrap version was 4.3.1, in which
.modal's z-index is set at 1050.
In Odoo 16.0, the included Bootstrap version is 5.1.3, in which .modal's
z-index is set at 1055.
Therefore, the previous z-index value of 1051 is now updated to 1056.
task# 3002456
closesodoo/odoo#107431
X-original-commit: 263137bcd38f788ff96d13d0810df4da13b72a19
Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>