Add volatile organic compounds device class (#19053)

source/_integrations/sensor.markdown

@@ -19,6 +19,8 @@ The type of data a sensor returns impacts how it is displayed in the frontend. T
 - **None**: Generic sensor. This is the default and doesn't need to be set.
 - **aqi**: Air Quality Index
 - **battery**: Percentage of battery that is left.
+- **carbon_dioxide**: Carbon Dioxide in CO2 (Smoke)
+- **carbon_monoxide**: Carbon Monoxide in CO (Gas CNG/LPG)
 - **current**: Current in A.
 - **energy**: Energy in Wh or kWh.
 - **humidity**: Percentage of humidity in the air.
@@ -30,16 +32,15 @@ The type of data a sensor returns impacts how it is displayed in the frontend. T
 - **pm1**: Concentration of particulate matter less than 1 micrometer in µg/m³
 - **pm25**: Concentration of particulate matter less than 2.5 micrometers in µg/m³
 - **pm10**: Concentration of particulate matter less than 10 micrometers in µg/m³
-- **sulphur_dioxide**: Concentration of sulphur dioxide in µg/m³
-- **signal_strength**: Signal strength in dB or dBm.
-- **temperature**: Temperature in °C or °F.
 - **power**: Power in W or kW.
 - **power_factor**: Power factor in %.
 - **pressure**: Pressure in hPa or mbar.
+- **signal_strength**: Signal strength in dB or dBm.
+- **sulphur_dioxide**: Concentration of sulphur dioxide in µg/m³
+- **temperature**: Temperature in °C or °F.
 - **timestamp**: Datetime object or timestamp string (ISO 8601).
+- **volatile_organic_compounds**: Concentration of volatile organic compounds in µg/m³.
 - **voltage**: Voltage in V.
-- **carbon_monoxide**: Carbon Monoxide in CO (Gas CNG/LPG)
-- **carbon_dioxide**: Carbon Dioxide in CO2 (Smoke)
 
 <p class='img'>
 <img src='/images/screenshots/sensor_device_classes_icons.png' />