fix: 调整多个英雄预制体的缩放和位置参数

- 统一调整多个英雄的局部缩放(_lscale)参数，使英雄模型显示更协调
- 修正英雄位置偏移量，确保英雄在场景中正确对齐
- 调整mo4英雄的碰撞框尺寸，避免与其他元素重叠

assets/resources/game/heros/mo4.prefab

@@ -154,8 +154,8 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 288,
-      "height": 288
+      "width": 259.2,
+      "height": 259.2
     },
     "_anchorPoint": {
       "__type__": "cc.Vec2",
@@ -330,8 +330,6 @@
       "__id__": 0
     },
     "fileId": "4aKyovCOhDJpr23Of35+5a",
-    "instance": null,
-    "targetOverrides": null,
     "nestedPrefabInstanceRoots": null
   },
   {
@@ -744,7 +742,7 @@
     "value": {
       "__type__": "cc.Vec3",
       "x": 0,
-      "y": 221.493,
+      "y": 204.845,
       "z": 0
     }
   },