* PMSA0031 sensors require ~3secs before coming up on I2C
As reported by @MALAONE1 and debugged by @shodan8192 , PMSA0031s
on a RAK4631 take 3 seconds before they can become detectable on I2c.
Add a delay(4000) before I2C scan if the air quality sensor pin
is defined.
Fixes https://github.com/meshtastic/firmware/issues/3690
* Remove 4 second wait and rescan during air quality init for the sensor
* works without but this triggers my OCD
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Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
