iso: ensure tools of deactivated profiles are still available

This is just for convenience, since the closuers are already in the
store. It might be helpful to be able to test out some things
of those deactivated profiles een on the iso isntaller.

lib/devos/devosSystem.nix

@@ -33,6 +33,8 @@ lib.nixosSystem (args // {
                 # above profile filter on the local config attribute
                 fullHostConfig.system.build.toplevel
               ];
+              # still pull in tools of deactivated profiles
+              environment.systemPackages = fullHostConfig.environment.systemPackages;
 
               # confilcts with networking.wireless which might be slightly
               # more useful on a stick