Add trolleybus to Routes category (#724)

Author: Dimitar5555

data/preset_categories/route.json

@@ -13,6 +13,7 @@
         "type/route/light_rail",
         "type/route/tram",
         "type/route/subway",
+        "type/route/trolleybus",
         "type/route/ferry",
         "type/route/power",
         "type/route/pipeline",