Make the SpriteFrames animation speed SpinBox take less vertical space
Make the SpriteFrames animation speed SpinBox take less vertical space

This makes it possible to display one more animation with the same
vertical space.

(cherry picked from commit 2427a9cafcfba050b951d0a21e60b08b6a9d17f7)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot