feat: add flying 3d santa component

[JaegerCaiser]

Description

Adds a festive 3D Flying Santa component to the application.

Changes

• Created FlyingSanta.tsx: A procedural low-poly 3D Santa model built with React Three Fiber primitives.
• Implemented complex animation logic:
  • Santa flies across the screen from right to left.
  • Waves "Goodbye" with his right arm.
  • Bobbing and weaving flight path (sine wave motion).
  • Random appearance intervals (15-45 seconds).
• Integrated FlyingSanta into App.tsx.
• Cleaned up unused assets and dependencies.

Visuals

Santa appears flying across the screen with a red and white low-poly design.

[github-actions]

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Commit: ae818b624f765741d41931009b44f1eeb9ce5c09