Add dataExtractionRules to suppress allowBackup deprecation warning and ensure compatibility with Android 12+ backup policies (#41)

* fix: resolve deprecated allowBackup warning for Android 12+

Add dataExtractionRules to suppress allowBackup deprecation warning
and ensure compatibility with Android 12+ backup policies

* Applied Spotless check

Author: XDdevv

app/src/main/AndroidManifest.xml

@@ -22,6 +22,8 @@ xmlns:tools="http://schemas.android.com/tools">
 <application
   android:name=".PokedexApp"
   android:allowBackup="false"
+  android:fullBackupContent="false"
+  android:dataExtractionRules="@xml/no_backup"
   android:enableOnBackInvokedCallback="true"
   android:icon="@mipmap/ic_launcher"
   android:label="@string/app_name"

app/src/main/res/xml/no_backup.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Designed and developed by 2024 skydoves (Jaewoong Eum)
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<data-extraction-rules>
+  <cloud-backup>
+    <exclude domain="root" />
+    <exclude domain="file" />
+    <exclude domain="database" />
+    <exclude domain="sharedpref" />
+    <exclude domain="external" />
+  </cloud-backup>
+  <device-transfer>
+    <exclude domain="root" />
+    <exclude domain="file" />
+    <exclude domain="database" />
+    <exclude domain="sharedpref" />
+    <exclude domain="external" />
+  </device-transfer>
+</data-extraction-rules>