Revert "Remove service-units event trigger from navigation"
Revert "Remove service-units event trigger from navigation"

This reverts commit a804496d5ddbebc0bc858daefcc2d3453185a373.

The issue was actually caused by a conflicting 'close' event in sidebar-region.coffee.
The issue is properly fixed by renaming the close event in navigation.coffee.

vaaralav/servicemap,vaaralav/servicemap,City-of-Helsinki/servicemap,Zeukkari/servicemap,vaaralav/servicemap,Zeukkari/servicemap,City-of-Helsinki/servicemap,City-of-Helsinki/servicemap