[Android] Added shadowless version of monochrome launcher icon

[mpbw2]

Type of change

• Bug fix
• New feature development
• Tech debt (refactoring, code cleanup, dependency upgrades, etc)
• Build/deploy pipeline (DevOps)
• Other

Objective

Added a version of the launcher icon (shield) without the material shadow

Code changes

• ic_launcher_monochrome.xml: Copy of ic_launcher_foreground.xml with the shadow path removed
• ic_launcher/ic_launcher_round.xml: Changed monochrome ref to point to new file

Screenshots

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