Get ATIS from JSON API and enhance display

[rcd]

We are unable to do a fetch() due to the CORS Origin header that the MSFS "browser" adds to the request. While we could work around this by using a CORS proxy, that would require a 3rd party server.

The current workaround is to display the text based ATIS report in an iframe.

The PilotEdge team was made aware and hopefully they will have a solution in the future.

[Error] Origin coui://html_ui is not allowed by Access-Control-Allow-Origin.
[Error] Failed to load resource: Origin coui://html_ui is not allowed by Access-Control-Allow-Origin. (KSMX.json, line 0)
[Error] XMLHttpRequest cannot load https://www.pilotedge.net/atis/KSMX.json due to access control checks.