Fix unknown rooms in space lobby (#2224)

Fix unknown rooms in space lobby (#2224)

* add hook to fetch one level of space hierarchy

* add enable param to level hierarchy hook

* improve HierarchyItem types

* fix type errors in lobby

* load space hierarachy per level

* fix menu item visibility

* fix unknown spaces over federation

* show inaccessible rooms only to admins

* fix unknown room renders loading content twice

* fix unknown room visible to normal user if space all room are unknown

* show no rooms card if space does not have any room