[IMP] website_sale_slides: do not automatically install module
[IMP] website_sale_slides: do not automatically install module

Now we can have eCommerce and eLearning without automatically willing to
sell courses. The auto_install in the manifest was also blocking the
possibility to uninstall the module. When we tried to uncheck the option for
selling course, it reinstalled it just after we had saved the change in the
settings.

Linked to task 1974929
Related to PR #34224
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo