Remove one of the files that list jfrog. This is ok as they contain the same content.
With regard to
you need to follow the instructions at Comitup | Bootstrap WiFi networking using the WiFi connection to import the public key. According to Corrupt installation after updating from 3.1 (M5) to 3.2.M4 that might not work. If that is the case you need to contact the owner of that repository.
To check if OH installation works you could temporarily remove the davesteele repo from the sources.list.d directory and do
sudo apt update