feat: 为划转页面切换按钮添加旋转动画

- 添加 180° 旋转动画效果
- 使用 CurvedAnimation 实现平滑过渡
- 动画时长 300ms，使用 easeInOut 曲线
- 提升用户体验，交互更流畅自然

flutter_monisuo/build/web/main.dart.js_112.part.js

@@ -1,7 +1,7 @@
 ((a,b)=>{a[b]=a[b]||{}})(self,"$__dart_deferred_initializers__")
 $__dart_deferred_initializers__.current=function(a,b,c,$){var B,A={
 b4I(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.ZG(v,u)
+u=new A.ZH(v,u)
 u.bf(d,w,e,w)
 y=u.a
 x=v.r
@@ -23,38 +23,38 @@ break A}if("input.selectAll"===e){y="\u5168\u9009"
 break A}if("keyboardToolbar.done"===e){y="\u5b8c\u6210"
 break A}y=null
 break A}return y},
-bnm(d){return new A.aSi(d)},
-ZG:function ZG(d,e){var _=this
+bnm(d){return new A.aSj(d)},
+ZH:function ZH(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aP_:function aP_(){},
-aSi:function aSi(d){this.a=d},
-aaH:function aaH(){}}
+aP1:function aP1(){},
+aSj:function aSj(d){this.a=d},
+aaI:function aaI(){}}
 B=c[0]
 A=a.updateHolder(c[82],A)
-A.ZG.prototype={
+A.ZH.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aP_()}return x},
+x=y.z=new A.aP1()}return x},
 gb9(){return this.r}}
-A.aP_.prototype={
+A.aP1.prototype={
 gbh(){return"\u526a\u5207"},
 gbg(){return"\u590d\u5236"},
 gbi(){return"\u7c98\u8d34"},
 gbe(){return"\u5168\u9009"}}
-A.aaH.prototype={}
+A.aaI.prototype={}
 var z=a.updateTypes([])
-A.aSi.prototype={
+A.aSj.prototype={
 $1(d){return A.bm2(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.aaH,B.a_)
-x(A.ZG,A.aaH)
-x(A.aP_,B.aZ)
-x(A.aSi,B.aR)
-y(A.aaH,B.aX)})()
-B.b3(b.typeUniverse,JSON.parse('{"ZG":{"a_":[]}}'))};
-(a=>{a["sWvW2lJpHvjLWbJWEhkQq1w5zkc="]=a.current})($__dart_deferred_initializers__);
+x(A.aaI,B.a_)
+x(A.ZH,A.aaI)
+x(A.aP1,B.aZ)
+x(A.aSj,B.aR)
+y(A.aaI,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"ZH":{"a_":[]}}'))};
+(a=>{a["6PnGCn9tNARri2+brvz0V2yhIhM="]=a.current})($__dart_deferred_initializers__);