chore: update android adaptive icon

android/app/src/main/AndroidManifest.xml

@@ -3,7 +3,7 @@
     <application
         android:label="Contact Tracing"
         android:name="${applicationName}"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/launcher_icon">
         <activity
             android:name=".MainActivity"
             android:exported="true"
@@ -28,7 +28,7 @@
         <service
           android:name=".MainTileService"
           android:exported="true"
-          android:icon="@mipmap/ic_launcher"
+          android:icon="@mipmap/launcher_icon"
           android:label="@string/tile_service_name"
           android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
 

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

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@drawable/ic_launcher_background"/>
+  <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

pubspec.yaml

@@ -57,9 +57,11 @@ dev_dependencies:
 # flutter pub run flutter_launcher_icons:main
 flutter_icons:
   remove_alpha_ios: true
-  android: true
+  android: "launcher_icon"
   ios: true
-  image_path: "assets/icon/icon.png"
+  image_path: "assets/ios_icon.png"
+  adaptive_icon_background: "assets/launcher_icon/background.png"
+  adaptive_icon_foreground: "assets/launcher_icon/foreground.png"
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec