Fix sidebar picking in subdirectories
Fix sidebar picking in subdirectories

Due to a call to the wrong array sorting function, in second-level subdirectories
Repositorium would not display a sidebar.md file even if it is present there,
but fall back to the Sidebar of the parent directory. This commit fixes the
problem.

pille1842/repositorium,pille1842/repositorium,pille1842/repositorium,pille1842/repositorium