Closing drawer doesn't release body scroll block

[ramononis]

Clicking outside the drawer to close it doesn't remove the mdc-dialog-scroll-lock class from the body, making it impossible to scroll after using the drawer.

[ramononis]

This test should also check if the scrollBlock is added/removed, which doesn't happen right now.

[posva]

Yes, it something that changed in the meantime but I still didn't update