Before this commit, the notification "Odoobot has a request" would
stay on screen even though the user blocked them in Firefox.
This case occurred when the user clicks on "Not Now", which tells the
browser that the push notifications should be blocked until the next
page reload.
This commit fixes this issue, so that the notification is removed
when clicking on "Not Now", in addition to cleaning tests related
to push notifications.
Task-ID 1918476
closesodoo/odoo#29584
Alexandre Kühn
a15c03e0bd