MMM-Trello Fix

[jaxfellow]

Fix: Update MMM-Trello dependencies and resolve security vulnerabilities

Summary

Modernizes MMM-Trello by replacing deprecated node-trello package with trello.js, eliminating all security vulnerabilities and fixing authentication issues.

Changes

• Dependencies: Replaced node-trello@1.3.0 (deprecated) with trello.js@1.2.8
• Security: Fixed 4 vulnerabilities (2 critical, 2 moderate) - now 0 vulnerabilities
• Code: Migrated to modern async/await patterns, replaced callbacks with Promises
• Auth: Updated authentication instructions for current Trello Power-Up process
• Configuration: Both display modes now working - choose between list: "" (single list) or board: "" (full board display)