fix imports

Author: FDUTCH

server/session/world.go

@@ -7,11 +7,10 @@ import (
 	"strings"
 	"time"
 
-	"github.com/df-mc/dragonfly/server/entity/effect"
-
 	"github.com/df-mc/dragonfly/server/block"
 	"github.com/df-mc/dragonfly/server/block/cube"
 	"github.com/df-mc/dragonfly/server/entity"
+	"github.com/df-mc/dragonfly/server/entity/effect"
 	"github.com/df-mc/dragonfly/server/internal/nbtconv"
 	"github.com/df-mc/dragonfly/server/item"
 	"github.com/df-mc/dragonfly/server/item/inventory"