feat(ui): 更新品牌启动页与选集交互

android/app/src/main/res/drawable-v31/launch_background.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Author: fruit.com.cn -->
+<!-- Android 12 already shows the icon in the system splash. This layer stays
+     the same color so the icon is not drawn a second time. -->
+
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/splash_background" />
+</layer-list>