Fix android 10 permission denied when using File

Author: samuelchemla

app/src/main/AndroidManifest.xml

@@ -25,6 +25,7 @@
         android:networkSecurityConfig="@xml/network_security_config"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
+        android:requestLegacyExternalStorage="true"
         android:theme="@style/Theme.MyApplication"
         tools:targetApi="31">
         <activity