fix(android): 按设计源图重做桌面图标资源

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,9 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-  <background android:drawable="@color/ic_launcher_background"/>
-  <foreground>
-      <inset
-          android:drawable="@drawable/ic_launcher_foreground"
-          android:inset="16%" />
-  </foreground>
+  <background android:drawable="@mipmap/ic_launcher_background"/>
+  <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>