refactor(heroInfo): 重构英雄信息UI展示逻辑

1. 移除废弃的fragment_node节点相关代码与引用
2. 调整英雄列表和卡片的布局尺寸与间距
3. 优化碎片数量显示的绑定方式
4. 删除无用的bak备份文件

assets/resources/gui/element/heros.prefab

@@ -1826,8 +1826,8 @@
     ],
     "value": {
       "__type__": "cc.Vec3",
-      "x": 75,
-      "y": 830,
+      "x": 105,
+      "y": 820,
       "z": 0
     }
   },
@@ -1938,8 +1938,8 @@
     ],
     "value": {
       "__type__": "cc.Vec3",
-      "x": 215,
-      "y": 830,
+      "x": 275,
+      "y": 820,
       "z": 0
     }
   },
@@ -2050,8 +2050,8 @@
     ],
     "value": {
       "__type__": "cc.Vec3",
-      "x": 355,
-      "y": 830,
+      "x": 445,
+      "y": 820,
       "z": 0
     }
   },
@@ -2162,8 +2162,8 @@
     ],
     "value": {
       "__type__": "cc.Vec3",
-      "x": 495,
-      "y": 830,
+      "x": 615,
+      "y": 820,
       "z": 0
     }
   },
@@ -2274,8 +2274,8 @@
     ],
     "value": {
       "__type__": "cc.Vec3",
-      "x": 635,
-      "y": 830,
+      "x": 105,
+      "y": 640,
       "z": 0
     }
   },
@@ -2386,8 +2386,8 @@
     ],
     "value": {
       "__type__": "cc.Vec3",
-      "x": 75,
-      "y": 660,
+      "x": 275,
+      "y": 640,
       "z": 0
     }
   },
@@ -2506,7 +2506,7 @@
       "height": 40
     },
     "_startAxis": 0,
-    "_paddingLeft": 15,
+    "_paddingLeft": 30,
     "_paddingRight": 0,
     "_paddingTop": 20,
     "_paddingBottom": 0,
@@ -2832,9 +2832,9 @@
       "__uuid__": "b8313fa7-28e5-4d92-9d64-a1e0ecb040a8",
       "__expectedType__": "cc.Prefab"
     },
-    "card_w": 120,
-    "spacing_x": 10,
-    "margin_x": 15,
+    "card_w": 150,
+    "spacing_x": 20,
+    "margin_x": 20,
     "_id": ""
   },
   {