debugging the radiosai google assistant action's audio search issue

Going step by step, found that dialogflow was returning the value "search" instead of the words the user was using. After going through the codelabs example at https://codelabs.developers.google.com/codelabs/actions-1/ ,  saw that after the dialogflow intent was edited with new training phrases without template mode, I needed to delete the old phrases, and then retrain before the changes would take effect, as per

https://github.com/googleapis/nodejs-dialogflow/issues/219

https://cloud.google.com/dialogflow/es/docs/training

Now, instead of the word "search", dialogflow returns the correct user phrase, as in the screenshot below.

After submitting this version as a release, the corrected version is live now.