refactor: 优化技能图标与动画资源，更新配置表

1. 新增maxw1、maxw2技能预制体并删除range1预制体
2. 预加载ui7图集防止GC回收
3. 更新全量技能、buff、天赋的图标配置
4. 调整技能动画帧率与时长优化表现
5. 修复技能UI组件的布局与引用

assets/resources/game/skill/atk/maxw2.prefab.meta

@@ -0,0 +1,13 @@
+{
+  "ver": "1.1.50",
+  "importer": "prefab",
+  "imported": true,
+  "uuid": "904a5d1f-6888-4b8c-a2ad-8a6db80db202",
+  "files": [
+    ".json"
+  ],
+  "subMetas": {},
+  "userData": {
+    "syncNodeName": "maxw2"
+  }
+}