EspoCRM WebSockets

[jimcavoli]

Per docs at https://github.com/espocrm/documentation/blob/master/administration/websocket.md there's a bit of server-side setup to get EspoCRM web socket support working nicely (which I checked, and the current Dockerfile doesn't seem to address). This drives a lot of the in-app popup notifications, and would be great to have work on the Cloudron packaging out of the box.

[jimcavoli]

As a follow-on note, I can probably get the changes pulled together myself, but it'll be at least a couple hours until I get to that

[jimcavoli]

Got to it faster than I thought - MR is up at https://git.cloudron.io/cloudron/espocrm-app/-/merge_requests/1

[girish]

@jimcavoli Thanks, merged and released!