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_63.part.js

@@ -1,15 +1,15 @@
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-b40(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.Z_(v,u)
+b4a(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.Z3(v,u)
 u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.bnZ(u)
+v.r=A.bob(u)
 return u},
-bmF(d,e){var y
+bmS(d,e){var y
 A:{if("timePicker.hours"===e){y="\u6642"
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 break A}if("timePicker.seconds"===e){y="\u79d2"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="\u3059\u3079\u3066\u9078\u629e"
 break A}if("keyboardToolbar.done"===e){y="\u5b8c\u4e86"
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 break A}return y},
-bnZ(d){return new A.aSW(d)},
-Z_:function Z_(d,e){var _=this
+bob(d){return new A.aT3(d)},
+Z3:function Z3(d,e){var _=this
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 _.z=_.w=$
 _.a=e
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-aOk:function aOk(){},
-aSW:function aSW(d){this.a=d},
-aa0:function aa0(){}}
+aOq:function aOq(){},
+aT3:function aT3(d){this.a=d},
+aa4:function aa4(){}}
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-A.Z_.prototype={
+A.Z3.prototype={
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-x=y.z=new A.aOk()}return x},
+x=y.z=new A.aOq()}return x},
 gb9(){return this.r}}
-A.aOk.prototype={
+A.aOq.prototype={
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 gbe(){return"\u3059\u3079\u3066\u9078\u629e"}}
-A.aa0.prototype={}
+A.aa4.prototype={}
 var z=a.updateTypes([])
-A.aSW.prototype={
-$1(d){return A.bmF(this.a,d)},
+A.aT3.prototype={
+$1(d){return A.bmS(this.a,d)},
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-x(A.aa0,B.a_)
-x(A.Z_,A.aa0)
-x(A.aOk,B.aZ)
-x(A.aSW,B.aR)
-y(A.aa0,B.aX)})()
-B.b3(b.typeUniverse,JSON.parse('{"Z_":{"a_":[]}}'))};
-(a=>{a["61OmcHPV71t5FOc7bnQA8nb0cP8="]=a.current})($__dart_deferred_initializers__);
+x(A.aa4,B.a_)
+x(A.Z3,A.aa4)
+x(A.aOq,B.aZ)
+x(A.aT3,B.aR)
+y(A.aa4,B.aX)})()
+B.b4(b.typeUniverse,JSON.parse('{"Z3":{"a_":[]}}'))};
+(a=>{a["nhTMuPVIkacRgd7NRQzeA/+4Q3c="]=a.current})($__dart_deferred_initializers__);