Make 3d style game pieces

[tkshill]

Issue Context

Currently the game piece icons are flat shapes and not particularly visually appealing

Suggested Solution

Create new svg icons with a 3d aesthetic to serve as the game piece icons instead

Alternatives Considered

n/a

Additional Resources

See here in the read me for how to run and install the application.

See here in contributing for the basics on forking and cloning the repository.

[github-actions]

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[abbeyperini]

I'd like to work on this issue!