Vizlib sheet Menu - Filter Pane with increased master item height

Since QS Feb 2021, the positioning of Master Objects within a FIlter Pane has evolved and looks ugly when we add 12+ objects.

We are left with 2 options:

- Master item height up to 600 px, which is not enough to show all the objects. We see a "..." button at the bottom, but users can't open this to see more filters.

- Master item height to auto: users see a mix of collapsed and expanded filters.

I guess the easiest solution could be to allow for more than 600px height.

See ticket #25286 for details.