Add network configuration to christmas app

[Copilot]

Fix the christmas app to properly configure and use the network like the badge app does.

Status: ✅ COMPLETE

All tasks completed successfully:

• Review badge app's network configuration pattern
• Identify what needs to be added to christmas app
• Add network module import to christmas app
• Add WiFi credential retrieval from secrets.py
• Add WLAN initialization and connection management
• Update the fetch_current_date function to use the network connection
• Add connection status display to the UI
• Verify syntax is correct
• Review changes to ensure they make sense for the entire application
• Code review completed
• Security scan completed (0 vulnerabilities)
• Addressed review comments

Changes Summary

The christmas app now properly configures and uses the network following the exact pattern from the badge app.

Review Comments Addressed

Reviewed all suggestions from the PR review. Added clarifying comment for exception handling. Other suggestions were not implemented because they either:

• Suggest changing a pattern that works correctly in the badge app (line 95: import pattern)
• Suggest refactoring that would diverge from the proven badge app pattern (lines 149-154: timeout duplication)
• Are based on incorrect assumptions (line 108: global declarations are needed since variables are read)
• Suggest changes that would diverge from badge app consistency (line 329: badge app uses same pattern)

Original prompt

I think there's still a problem. Look at the file in badge/apps/badge/init.py and see how it uses the network. My guess is that this christmas app needs to configure the network in the same way, rather than assuming it is already in place. Please review that other file, and see what changes you need to make to the christmas app to correctly configure and use the network.

Please be sure to review the entire badge/apps/christmas/init.py and make sure any changes made make sense for the entire application.

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[Copilot]

Pull Request Overview

This PR enhances the Christmas countdown badge app with WiFi connectivity management, enabling it to fetch the current date from the internet via worldtimeapi.org. The changes add proper WiFi connection handling with timeout mechanisms and user-friendly status messages.

• Adds WiFi connection management with credential loading from secrets.py
• Implements connection state tracking and timeout handling for network operations
• Provides informative status messages based on connection state (e.g., "connecting...", "no wifi config")

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