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_29.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={
 b3E(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.YC(v,u)
+u=new A.YD(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="Dewis y cyfan"
 break A}if("keyboardToolbar.done"===e){y="Gorffen"
 break A}y=null
 break A}return y},
-bon(d){return new A.aTj(d)},
-YC:function YC(d,e){var _=this
+bon(d){return new A.aTk(d)},
+YD:function YD(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aNW:function aNW(){},
-aTj:function aTj(d){this.a=d},
-a9D:function a9D(){}}
+aNY:function aNY(){},
+aTk:function aTk(d){this.a=d},
+a9E:function a9E(){}}
 B=c[0]
 A=a.updateHolder(c[15],A)
-A.YC.prototype={
+A.YD.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aNW()}return x},
+x=y.z=new A.aNY()}return x},
 gb9(){return this.r}}
-A.aNW.prototype={
+A.aNY.prototype={
 gbh(){return"Torri"},
 gbg(){return"Cop\xefo"},
 gbi(){return"Gludo"},
 gbe(){return"Dewis y cyfan"}}
-A.a9D.prototype={}
+A.a9E.prototype={}
 var z=a.updateTypes([])
-A.aTj.prototype={
+A.aTk.prototype={
 $1(d){return A.bn3(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a9D,B.a_)
-x(A.YC,A.a9D)
-x(A.aNW,B.aZ)
-x(A.aTj,B.aR)
-y(A.a9D,B.aX)})()
-B.b3(b.typeUniverse,JSON.parse('{"YC":{"a_":[]}}'))};
-(a=>{a["G9TEcC8085i5olMsweQ7fw69fhM="]=a.current})($__dart_deferred_initializers__);
+x(A.a9E,B.a_)
+x(A.YD,A.a9E)
+x(A.aNY,B.aZ)
+x(A.aTk,B.aR)
+y(A.a9E,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"YD":{"a_":[]}}'))};
+(a=>{a["3xiGzC+USwBKMQFm3RuvpyboC3M="]=a.current})($__dart_deferred_initializers__);