feat: add animations for common GitHub events

[chriswblake]

Recommendation

1. Look at the events that are sent via the GitHub Home Assistant integration.

2. Make presets that match common events.

3. Make tutorial on configuring Home Assistant and GitHub to use them.

Ideas

• PR started by Copilot
  • If opened by Copilot, switch to purple.
  • Some animation to show it is thinking.
• PR merged by Copilot
  • Short animation to transition from purple to subtle green.
• Repository Star
  • Show number on face
  • Show star icon on goggles
  • Run twinkle effect in yellow
• New Follower
  • Show number on face
  • Some effect in green
• New Issue
• New Security Alert
  • Red themed
  • Bigger eyes