Investigate voice control via Alexa and Google Assistant

[barbeau]

Is your feature request related to a problem? Please describe.
Allowing voice control of the app would make it easier for older adults to easily start the MUSER app

Describe the solution you'd like
See if we can enable via Alexa (given that we're currently using FireOS tablets) or Google Assistant.

Looks like Alexa for Apps, which can control apps, is still in developer preview:
https://developer.amazon.com/en-US/alexa/alexa-skills-kit/get-deeper/response-api/alexa-for-apps#voice-commands

Describe alternatives you've considered
Do nothing - continue using manual controls