unconditionally restart trigger services on liminix-rebuild

We call s6-rc -u -p default to restart/start the base services
on a rebuild, otherwise services that are only in the new
configuration won't come up. However, this stops any service
started by a trigger. So, workaround is to restart the trigger
service and expect it to restart the services it manages if they're
needed

pkgs/systemconfig/restart-services.fnl

@@ -12,8 +12,11 @@
         new-hashes (hashes-from-file new)]
     (with-open [f (io.open "/tmp/restarts" :w)]
       (each [n h (pairs old-hashes)]
-        (when (not (= h (. new-hashes n)))
-          (f:write (.. n " restart\n")))))))
+        (let [new (. new-hashes n)]
+          (when (or (= h "force-restart")
+                    (= new "force-restart")
+                    (not (= h new)))
+            (f:write (.. n " restart\n"))))))))
 
 (fn exec [text command]
   (io.write (.. text ": "))