Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1499>
Some components use build time optional dependencies such as GNOME Bluetooth, so we need to import the components conditionally. Also rename to get rid of __init__.js file Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1499>