Move local IDs to map.json

data/maps/SaffronCity/map.json

@@ -108,6 +108,7 @@
       "flag": "FLAG_HIDE_SAFFRON_ROCKETS"
     },
     {
+      "local_id": "LOCALID_SAFFRON_DOOR_GUARD_GRUNT",
       "type": "object",
       "graphics_id": "OBJ_EVENT_GFX_ROCKET_M",
       "x": 34,
@@ -436,7 +437,7 @@
       "x": 24,
       "y": 39,
       "respawn_map": "MAP_SAFFRON_CITY_POKEMON_CENTER_1F",
-      "respawn_npc": 1
+      "respawn_npc": "LOCALID_SAFFRON_NURSE"
     }
   ]
 }