(client) chore:修复子弹属性错误，人物属性错误，侧边消息堆叠错误

Client/Assets/Scripts/Entity/Bullet.cs

@@ -6,9 +6,17 @@ namespace Entity
 {
     public class Bullet : Entity
     {
-        public Entity bulletSource;
+        public Entity bulletSource { get; private set; }
         public float lifeTime = 10;
 
+
+
+        public void SetBulletSource(Entity source)
+        {
+            bulletSource = source;
+            attributes.attack = source.attributes.attack;
+        }
+        
         public override void SetTarget(Vector3 pos)
         {
             base.SetTarget(pos);