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_111.part.js

@@ -1,15 +1,15 @@
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-u=new A.ZG(v,u)
+b4R(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.ZK(v,u)
 u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.bnx(u)
+v.r=A.bnK(u)
 return u},
-bmd(d,e){var y
+bmq(d,e){var y
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 break A}if("timePicker.minutes"===e){y="Ph\xfat"
 break A}if("timePicker.seconds"===e){y="Gi\xe2y"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="Ch\u1ecdn t\u1ea5t c\u1ea3"
 break A}if("keyboardToolbar.done"===e){y="Xong"
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-bnx(d){return new A.aSu(d)},
-ZG:function ZG(d,e){var _=this
+bnK(d){return new A.aSC(d)},
+ZK:function ZK(d,e){var _=this
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-aP0:function aP0(){},
-aSu:function aSu(d){this.a=d},
-aaH:function aaH(){}}
+aP6:function aP6(){},
+aSC:function aSC(d){this.a=d},
+aaL:function aaL(){}}
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-A.ZG.prototype={
+A.ZK.prototype={
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 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aP0()}return x},
+x=y.z=new A.aP6()}return x},
 gb9(){return this.r}}
-A.aP0.prototype={
+A.aP6.prototype={
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 gbi(){return"D\xe1n"},
 gbe(){return"Ch\u1ecdn t\u1ea5t c\u1ea3"}}
-A.aaH.prototype={}
+A.aaL.prototype={}
 var z=a.updateTypes([])
-A.aSu.prototype={
-$1(d){return A.bmd(this.a,d)},
+A.aSC.prototype={
+$1(d){return A.bmq(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.aaH,B.a_)
-x(A.ZG,A.aaH)
-x(A.aP0,B.aZ)
-x(A.aSu,B.aR)
-y(A.aaH,B.aX)})()
-B.b3(b.typeUniverse,JSON.parse('{"ZG":{"a_":[]}}'))};
-(a=>{a["QvbjsktGXWn39HbVSOj4RkG2hwI="]=a.current})($__dart_deferred_initializers__);
+x(A.aaL,B.a_)
+x(A.ZK,A.aaL)
+x(A.aP6,B.aZ)
+x(A.aSC,B.aR)
+y(A.aaL,B.aX)})()
+B.b4(b.typeUniverse,JSON.parse('{"ZK":{"a_":[]}}'))};
+(a=>{a["2qNdvxDtsO3T7ys2NTZ5FQLvkpk="]=a.current})($__dart_deferred_initializers__);