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_42.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={
 b3L(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.YJ(v,u)
+u=new A.YK(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="\u0627\u0646\u062a\u062e\u0627\u0628 \u0647
 break A}if("keyboardToolbar.done"===e){y="\u062a\u0645\u0627\u0645"
 break A}y=null
 break A}return y},
-bog(d){return new A.aTc(d)},
-YJ:function YJ(d,e){var _=this
+bog(d){return new A.aTd(d)},
+YK:function YK(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aO2:function aO2(){},
-aTc:function aTc(d){this.a=d},
-a9K:function a9K(){}}
+aO4:function aO4(){},
+aTd:function aTd(d){this.a=d},
+a9L:function a9L(){}}
 B=c[0]
 A=a.updateHolder(c[22],A)
-A.YJ.prototype={
+A.YK.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aO2()}return x},
+x=y.z=new A.aO4()}return x},
 gb9(){return this.r}}
-A.aO2.prototype={
+A.aO4.prototype={
 gbh(){return"\u0628\u0631\u0634"},
 gbg(){return"\u06a9\u067e\u06cc"},
 gbi(){return"\u0686\u0633\u0628\u0627\u0646\u062f\u0646"},
 gbe(){return"\u0627\u0646\u062a\u062e\u0627\u0628 \u0647\u0645\u0647"}}
-A.a9K.prototype={}
+A.a9L.prototype={}
 var z=a.updateTypes([])
-A.aTc.prototype={
+A.aTd.prototype={
 $1(d){return A.bmX(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a9K,B.a_)
-x(A.YJ,A.a9K)
-x(A.aO2,B.aZ)
-x(A.aTc,B.aR)
-y(A.a9K,B.aX)})()
-B.b3(b.typeUniverse,JSON.parse('{"YJ":{"a_":[]}}'))};
-(a=>{a["86hqJyIUfwOV9aLoKM+v5G18anU="]=a.current})($__dart_deferred_initializers__);
+x(A.a9L,B.a_)
+x(A.YK,A.a9L)
+x(A.aO4,B.aZ)
+x(A.aTd,B.aR)
+y(A.a9L,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"YK":{"a_":[]}}'))};
+(a=>{a["JttN1cb6Nc1TZWRBFKJae4Ke2dk="]=a.current})($__dart_deferred_initializers__);