(Pages) Filter block does not respect orientation

The form in the filter block is always formatted as ipsForm_vertical, even if using the block in the main content. This should be at least ipsForm_horizontal.

Better to display it the same way the search does, where the fields are displayed as columns to save place for long filter forms:

Yes, I am aware the last one is a suggestion. 😄 I could not stop, please concentrate on the first line.