Compact view option also for filmstrip view

[dia3olik]

Hey Boris, I think it would be great to enable the compact view also for filmstrip view, to have the view uncluttered with no blank space top/bottom of the filmstrips, just a nice wall of filmstrips as compact as possible with no UI space wasted ;-)

Thanks as always!

[whyboris]

Thank you for the suggestion - seems doable (re-use the already-present "compact view") 👍 PR welcome 🤝

[whyboris]

Closed with #706

Thank you @semla for the fix!