feat: 为划转页面账户卡片添加位置互换动画

- 移除按钮旋转动画，保持按钮静止
- 两个账户卡片（从/到）平滑互换位置
- 使用 AnimatedSwitcher + FadeTransition + SlideTransition
- 动画时长 300ms，easeOut 曲线
- 上方卡片向上滑出，下方卡片向下滑入
- 视觉效果更流畅自然

flutter_monisuo/build/web/main.dart.js_41.part.js

@@ -1,15 +1,15 @@
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-u=new A.YJ(v,u)
+b3U(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
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+v.r=A.bou(u)
 return u},
-bmY(d,e){var y
+bna(d,e){var y
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 break A}if("timePicker.minutes"===e){y="Minutuak"
 break A}if("timePicker.seconds"===e){y="Segundoak"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="Hautatu dena"
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+a9O:function a9O(){}}
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+A.YN.prototype={
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-A.aO3.prototype={
+A.aO9.prototype={
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 gbi(){return"Itsatsi"},
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-A.a9K.prototype={}
+A.a9O.prototype={}
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-A.aTe.prototype={
-$1(d){return A.bmY(this.a,d)},
+A.aTm.prototype={
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-x(A.YJ,A.a9K)
-x(A.aO3,B.aZ)
-x(A.aTe,B.aR)
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-B.b3(b.typeUniverse,JSON.parse('{"YJ":{"a_":[]}}'))};
-(a=>{a["6ByR2mXfBQgPQfZ95OxjAYXcUt8="]=a.current})($__dart_deferred_initializers__);
+x(A.a9O,B.a_)
+x(A.YN,A.a9O)
+x(A.aO9,B.aZ)
+x(A.aTm,B.aR)
+y(A.a9O,B.aX)})()
+B.b4(b.typeUniverse,JSON.parse('{"YN":{"a_":[]}}'))};
+(a=>{a["GZjGg5BAi4x2R2aiFP+Oz7lOXOo="]=a.current})($__dart_deferred_initializers__);