Option to make the table of contents on the left side more compact and show more items

[TheSevenPens]

The table of contents on the left has a LOT of vertical space between items. This is true both when viewing and editing docs.

When viewing it means users see less items
When editing it means I have to do more cumbersome scrolling to move pages.

example:

My feature request is an option to make a more compact display of that section.