Turn mob id magic numbers into constants

src/main/java/net/server/channel/handlers/MonsterBombHandler.java

@@ -22,6 +22,7 @@
 package net.server.channel.handlers;
 
 import client.Client;
+import constants.id.MobId;
 import net.AbstractPacketHandler;
 import net.packet.InPacket;
 import server.life.Monster;
@@ -35,7 +36,7 @@ public final class MonsterBombHandler extends AbstractPacketHandler {
         if (!c.getPlayer().isAlive() || monster == null) {
             return;
         }
-        if (monster.getId() == 8500003 || monster.getId() == 8500004) {
+        if (monster.getId() == MobId.HIGH_DARKSTAR || monster.getId() == MobId.LOW_DARKSTAR) {
             monster.getMap().broadcastMessage(PacketCreator.killMonster(monster.getObjectId(), 4));
             c.getPlayer().getMap().removeMapObject(oid);
         }