Resolve "Ensure tablets and Jitsi work together"

Previously, tablets and mobile did not work with Jitsi, due to them forcing the user to open the call in the app. This has none of our JS handlers. I have now changed this in the config. Note that this still won't work locally, since you can't access media (microphone/camera) on non-HTTPS domains on mobile Chrome, so we'll need to rely on the deployed version for testing.

Closes #257 (closed)