Book filters cut off on small screen

[nitej]

When using small screens (phones and computers with lower resolution monitors), the filters in the left side bar get cut off. Since the side bar area does not scroll, it makes it impossible to use the "Book is owned" filter on these devices.

[bayang]

can you check if the problem persists after latest release (0.68.0) ? I have the impression that the filter bar is scrollable