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_41.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={
 b3K(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.YI(v,u)
+u=new A.YJ(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="Hautatu dena"
 break A}if("keyboardToolbar.done"===e){y="Eginda"
 break A}y=null
 break A}return y},
-boh(d){return new A.aTd(d)},
-YI:function YI(d,e){var _=this
+boh(d){return new A.aTe(d)},
+YJ:function YJ(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aO1:function aO1(){},
-aTd:function aTd(d){this.a=d},
-a9J:function a9J(){}}
+aO3:function aO3(){},
+aTe:function aTe(d){this.a=d},
+a9K:function a9K(){}}
 B=c[0]
 A=a.updateHolder(c[21],A)
-A.YI.prototype={
+A.YJ.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aO1()}return x},
+x=y.z=new A.aO3()}return x},
 gb9(){return this.r}}
-A.aO1.prototype={
+A.aO3.prototype={
 gbh(){return"Ebaki"},
 gbg(){return"Kopiatu"},
 gbi(){return"Itsatsi"},
 gbe(){return"Hautatu dena"}}
-A.a9J.prototype={}
+A.a9K.prototype={}
 var z=a.updateTypes([])
-A.aTd.prototype={
+A.aTe.prototype={
 $1(d){return A.bmY(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a9J,B.a_)
-x(A.YI,A.a9J)
-x(A.aO1,B.aZ)
-x(A.aTd,B.aR)
-y(A.a9J,B.aX)})()
-B.b3(b.typeUniverse,JSON.parse('{"YI":{"a_":[]}}'))};
-(a=>{a["jf6NGx1DAG2mSDwUkgAwHHxXuyI="]=a.current})($__dart_deferred_initializers__);
+x(A.a9K,B.a_)
+x(A.YJ,A.a9K)
+x(A.aO3,B.aZ)
+x(A.aTe,B.aR)
+y(A.a9K,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"YJ":{"a_":[]}}'))};
+(a=>{a["6ByR2mXfBQgPQfZ95OxjAYXcUt8="]=a.current})($__dart_deferred_initializers__);