* Upon connect, retrieve the available api ports
* Update dapps to load from dappsPort
* Update dapps summary with dappsPort
* Allow proxy to use dappsPort
* Replace /api/ping with HEAD /
* Dynamic port for available apps
* Retrieve content images with dappsPort
* Fix /
* Transfer token dropdown image fix
* IdentityIcon loads images via contentHash
* Update apps fetch to cater for dev & prod
* DRY up 127.0.0.1:${dappsPort} with ${dappsUrl}
