This test is ran in the backend and, if we do not mark it as post
install, the dependencies of the web module are not installed.
The webclient will then errors like "View type 'kanban' is not present
in the view registry".
The test begins by opening the webclient which default view is the
kanban view of the apps. However, by running this test at the web
module installation, web_kanban is not yet installed.