App icon updated from provided aria2_icons.tar.gz.
Applied resources:
- mipmap-ldpi/ic_launcher.png
- mipmap-mdpi/ic_launcher.png
- mipmap-hdpi/ic_launcher.png
- mipmap-xhdpi/ic_launcher.png
- mipmap-xxhdpi/ic_launcher.png
- mipmap-xxxhdpi/ic_launcher.png
- round variants mirrored from the same images
Removed:
- mipmap-anydpi-v26 adaptive icon XMLs
Reason: The provided artwork is a complete square launcher icon, so using direct bitmap mipmap assets preserves the design consistently.