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_49.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={
 b3R(d,e,f){var y,x,w=null,v=new B.a0(),u=new B.a0()
-u=new A.YP(v,u)
+u=new A.YQ(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="Alles usw\xe4hle"
 break A}if("keyboardToolbar.done"===e){y="Fertig"
 break A}y=null
 break A}return y},
-bo9(d){return new A.aT5(d)},
-YP:function YP(d,e){var _=this
+bo9(d){return new A.aT6(d)},
+YQ:function YQ(d,e){var _=this
 _.r=d
 _.z=_.w=$
 _.a=e
 _.e=_.b=$},
-aO8:function aO8(){},
-aT5:function aT5(d){this.a=d},
-a9Q:function a9Q(){}}
+aOa:function aOa(){},
+aT6:function aT6(d){this.a=d},
+a9R:function a9R(){}}
 B=c[0]
 A=a.updateHolder(c[28],A)
-A.YP.prototype={
+A.YQ.prototype={
 h(d,e){var y=this.r.a4(e)
 return y==null?this.a.a4(e):y},
 gb4(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
-x=y.z=new A.aO8()}return x},
+x=y.z=new A.aOa()}return x},
 gb9(){return this.r}}
-A.aO8.prototype={
+A.aOa.prototype={
 gbh(){return"Usschnide"},
 gbg(){return"Kopiere"},
 gbi(){return"Iif\xfcege"},
 gbe(){return"Alles usw\xe4hle"}}
-A.a9Q.prototype={}
+A.a9R.prototype={}
 var z=a.updateTypes([])
-A.aT5.prototype={
+A.aT6.prototype={
 $1(d){return A.bmQ(this.a,d)},
 $S:2};(function inheritance(){var y=a.mixin,x=a.inherit
-x(A.a9Q,B.a_)
-x(A.YP,A.a9Q)
-x(A.aO8,B.aZ)
-x(A.aT5,B.aR)
-y(A.a9Q,B.aX)})()
-B.b3(b.typeUniverse,JSON.parse('{"YP":{"a_":[]}}'))};
-(a=>{a["eSbMzfUti/OnzguJ2NIw7XLzels="]=a.current})($__dart_deferred_initializers__);
+x(A.a9R,B.a_)
+x(A.YQ,A.a9R)
+x(A.aOa,B.aZ)
+x(A.aT6,B.aR)
+y(A.a9R,B.aX)})()
+B.b3(b.typeUniverse,JSON.parse('{"YQ":{"a_":[]}}'))};
+(a=>{a["DreNYVFnZV0KSU5I24wfLSZU0rI="]=a.current})($__dart_deferred_initializers__);