When no payment provider is active, admin users should see the 'Activate
Stripe' button on the checkout page, allowing them to configure Stripe
faster.
This commit also disables the provider 'Pay in store when picking the
product' in the demo data to improve the testing experience of the
eCommerce settings on runbot.
task-3235154
closesodoo/odoo#121138
Related: odoo/enterprise#40934
Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>
