Fix AQI Category Sensor

• Add MQTT retain flag
• Fix AQI Category Sensor

Support for Home Assistant through MQTT

• Add MQTT integration with Home Assistant sensor support
• Make InfluxDB integration optional
• Fix AQI = 0 bug

Add support for PMS sensor

• Add support for Plantower PMS(1,3,5,6,7)003 (particulate matter) sensor
• Upgrade Flask and influxdb-client

Python 3.10

• Upgrade Python to v3.10
• Upgrade Flask to v2
• Upgrade Super-Linter to v4

Add Docker image

• Add a Dockerfile and Docker Compose file
• Add a /info health check

Use InfluxDB v2.0

Use the newer InfluxDB v2.0 API with the official Python implementation and move the configuration from a config file to environment variables.

Initial release

This release supports

• Receiving sensor.community ESP8266 payload
• Calculating AQI
• Storing data in InfluxDB