Fix non-blocking network timeouts

[brentru]

• Removes non-blocking checkNetworkConnection, checkMQTTConnection functions
• Adds new blocking handleNetworking call which handles:
  • keepAliveWiFi - handles WiFi network status and reconnections, performs same status LED operations as the initial connection
  • mqttStatus to handle MQTT connection status and reconnection
  • Resends hardware description upon reconnection

Addresses:
#112
#52

[brentru]

Update - GitHub Actions is now experiencing degraded availability. We are continuing to investigate.
Aug 10, 20:16 UTC

Will look at this later and kick actions when it's back online...