build: 生产环境构建 (ENV=prod) - 底部导航栏文字标签

- 添加底部导航栏文字标签
- 优化主题切换功能
- 字体 tree-shaking 优化完成
- WebAssembly dry run 成功

flutter_monisuo/build/web/main.dart.js_20.part.js

@@ -37,7 +37,7 @@ A=a.updateHolder(c[12],A)
 A.Wr.prototype={
 h(d,e){var y=this.r.a2(e)
 return y==null?this.a.a2(e):y},
-gaW(){var y=this,x=y.z
+gaX(){var y=this,x=y.z
 if(x===$){if(y.w===$)y.w=y
 x=y.z=new A.aIc()}return x},
 gb_(){return this.r}}
@@ -57,4 +57,4 @@ x(A.aIc,B.aR)
 x(A.aNj,B.aN)
 y(A.a74,B.aQ)})()
 B.aW(b.typeUniverse,JSON.parse('{"Wr":{"V":[]}}'))};
-(a=>{a["uPEM78i8wwHDtrkL/K4eCB5EJnY="]=a.current})($__dart_deferred_initializers__);
+(a=>{a["Sf71V2uXlhLIXdu43cVi0rTUuWU="]=a.current})($__dart_deferred_initializers__);