chore: change Android's app icon

Author: BenderBlog

README.md

@@ -1,10 +1,10 @@
 <div align="center">
-<img src="./assets/icon.png" style="border-radius:10px; margin:10px; width:120px" alt="TrainTime PDA">
+<img src="./assets/icon.png" style="border-radius:10px; margin:10px; width:120px" alt="XDYou">
 <h1>Traintime PDA</h1>
 
 [![Release downloads](https://img.shields.io/github/downloads/BenderBlog/traintime_pda/total.svg)](https://GitHub.com/BenderBlog/traintime_pda/releases/) ![Android Version](https://img.shields.io/badge/Android%20API-23%2B-green)
 
-Traintime PDA，又称 XDYou，是为西电学生设计的开源信息查询软件。
+XDYou，代码名称为 Traintime PDA，是为西电学生设计的开源信息查询软件。
 
 [临时主页地址](https://legacy.superbart.top/xdyou.html) 
 </div>

android/app/src/main/AndroidManifest.xml

@@ -5,7 +5,7 @@
     <application android:name="${applicationName}"
         android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
-        android:label="Traintime PDA"
+        android:label="XDYou"
         android:networkSecurityConfig="@xml/network_security_config"
         tools:replace="android:label">
 

android/app/src/main/ic_launcher-playstore.png

@@ -1,5 +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 android:drawable="@mipmap/ic_launcher_foreground"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>

android/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,5 +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 android:drawable="@mipmap/ic_launcher_foreground"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>