Move events (imports)

src/main/java/emu/grasscutter/server/event/game/SendPacketEvent.java

@@ -2,7 +2,7 @@ package emu.grasscutter.server.event.game;
 
 import emu.grasscutter.net.packet.BasePacket;
 import emu.grasscutter.server.event.Cancellable;
-import emu.grasscutter.server.event.ServerEvent;
+import emu.grasscutter.server.event.types.ServerEvent;
 import emu.grasscutter.server.game.GameSession;
 
 public final class SendPacketEvent extends ServerEvent implements Cancellable {

src/main/java/emu/grasscutter/server/event/game/ServerTickEvent.java

 package emu.grasscutter.server.event.game;
 
-import emu.grasscutter.server.event.ServerEvent;
+import emu.grasscutter.server.event.types.ServerEvent;
 
 public final class ServerTickEvent extends ServerEvent {
     public ServerTickEvent() {

src/main/java/emu/grasscutter/server/event/internal/ServerStartEvent.java

 package emu.grasscutter.server.event.internal;
 
-import emu.grasscutter.server.event.ServerEvent;
+import emu.grasscutter.server.event.types.ServerEvent;
 
 import java.time.OffsetDateTime;
 

src/main/java/emu/grasscutter/server/event/internal/ServerStopEvent.java

 package emu.grasscutter.server.event.internal;
 
-import emu.grasscutter.server.event.ServerEvent;
+import emu.grasscutter.server.event.types.ServerEvent;
 
 import java.time.OffsetDateTime;