[WIP] Add Android app launcher icon using provided image

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Add an Android app launcher icon to the repository using the provided image.

Use the uploaded image as the basis for the launcher icon shown on users' phones.

Requirements:

• Create/update proper Android launcher icon resources (prefer adaptive icon if possible).
• Ensure AndroidManifest.xml references the correct launcher icon resource.
• Generate standard densities (mipmap-hdpi/mdpi/xhdpi/xxhdpi/xxxhdpi) as needed.
• Include round icon if the project uses it.
• Keep existing theming consistent; choose reasonable background if required.

Use this image:

Repository: vinberg88/blanketforandroid

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