Detect the addition or suppression of MIDI devices

[vincentcourtois]

Context

When a MIDi device is added or removed, the MIDi controller does not take it into account without refreshing the page as the devices are parsed at page load. We need to detect it dynamically for the synthesizer to be easier to use.

Needs

As a user of the application editing a synthesizer
I want to be able to have my devices dynamically detected at page load
So that I can not have to reload the page for it to be taken into account

Notes

• See https://developer.mozilla.org/en-US/docs/Web/API/MIDIConnectionEvent for implementation example