🔖 Bump version to 0.14.1

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

📄 Add README, GitHub link in about dialog, and full credits

- Styled README with badges, feature tables, What's New in v0.14 section,
  build/run instructions, and credits table
- About dialog now shows GitHub link and updated copyright (2006–2024)
  across all 11 language properties files
- Credits include all original contributors: Bombe, nextgens, hernic,
  JlXip, Presender, Stefano Calabrese, blubskye, Cynthia, Claude, xAI, OpenMoji

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>