refactor: adjust animation logic

[Aarebecca]

• 从 Element Controller 中抽取出动画逻辑并置于 Animation Controller
• 调整 Element.draw 方法值，返回一个 IAnmation 对象
• 调整动画配置逻辑及优先级，具体参考：动画优先级
• 边的路径与组合尺寸的更新在 onframe 中进行

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• Extract the Animation logic from the Element Controller and put it in the Animation Controller
• Adjust the Element.draw method value, return a IAnmation object
• Adjust the animation configuration logic and priority, specific reference: animation priority
• The path of the edge and the update of the combined dimensions are carried out in onframe