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_18.part.js

@@ -1,15 +1,15 @@
 ((a,b)=>{a[b]=a[b]||{}})(self,"$__dart_deferred_initializers__")
 $__dart_deferred_initializers__.current=function(a,b,c,$){var B,A={
-b3z(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.Yy(v,u)
+b3J(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
+u=new A.YC(v,u)
 u.bf(d,w,e,w)
 y=u.a
 x=v.r
 x.toString
 y.r=x
-v.r=A.bot(u)
+v.r=A.boG(u)
 return u},
-bn9(d,e){var y
+bnm(d,e){var y
 A:{if("timePicker.hours"===e){y="\u0998\u09a3\u09cd\u099f\u09be"
 break A}if("timePicker.minutes"===e){y="\u09ae\u09bf\u09a8\u09bf\u099f"
 break A}if("timePicker.seconds"===e){y="\u09b8\u09c7\u0995\u09c7\u09a8\u09cd\u09a1"
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="\u09b8\u09ac \u09a8\u09bf\u09b0\u09cd\u09ac
 break A}if("keyboardToolbar.done"===e){y="\u09b8\u09ae\u09cd\u09aa\u09a8\u09cd\u09a8"
 break A}y=null
 break A}return y},
-bot(d){return new A.aTq(d)},
-Yy:function Yy(d,e){var _=this
+boG(d){return new A.aTy(d)},
+YC:function YC(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aNT:function aNT(){},
-aTq:function aTq(d){this.a=d},
-a9z:function a9z(){}}
+aNZ:function aNZ(){},
+aTy:function aTy(d){this.a=d},
+a9D:function a9D(){}}
 B=c[0]
 A=a.updateHolder(c[10],A)
-A.Yy.prototype={
+A.YC.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aNT()}return x},
+x=y.z=new A.aNZ()}return x},
 gb9(){return this.r}}
-A.aNT.prototype={
+A.aNZ.prototype={
 gbh(){return"\u0995\u09be\u099f"},
 gbg(){return"\u0995\u09aa\u09bf"},
 gbi(){return"\u09aa\u09c7\u09b8\u09cd\u099f"},
 gbe(){return"\u09b8\u09ac \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8 \u0995\u09b0\u09c1\u09a8"}}
-A.a9z.prototype={}
+A.a9D.prototype={}
 var z=a.updateTypes([])
-A.aTq.prototype={
-$1(d){return A.bn9(this.a,d)},
+A.aTy.prototype={
+$1(d){return A.bnm(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a9z,B.a_)
-x(A.Yy,A.a9z)
-x(A.aNT,B.aZ)
-x(A.aTq,B.aR)
-y(A.a9z,B.aX)})()
-B.b3(b.typeUniverse,JSON.parse('{"Yy":{"a_":[]}}'))};
-(a=>{a["X8ixmov9Kmrazy36fNGnJbcMQBg="]=a.current})($__dart_deferred_initializers__);
+x(A.a9D,B.a_)
+x(A.YC,A.a9D)
+x(A.aNZ,B.aZ)
+x(A.aTy,B.aR)
+y(A.a9D,B.aX)})()
+B.b4(b.typeUniverse,JSON.parse('{"YC":{"a_":[]}}'))};
+(a=>{a["7UBh53VjcGsOM484yLmyfMHS+1M="]=a.current})($__dart_deferred_initializers__);