Have UI be accessible to many devices

[EliasJRH]

We've talked about having multiple devices access the UI for a while and we've derived a simple way to do it. Modify the web socket server URL in main.tsx to use the IP address of the host instead of localhost. Other devices can then use this IP, open a web browser and view the UI from their device. The steps required to make this as simple to use as possible:

• Modify docker-compose.yml to set the environment variable of IP address of host
• Modify code to use the IP address of the host from the environment variable instead of localhost

There will also need to be security measures implemented to ensure that only the host device can send commands but this should be implemented on the backend also using environment variables.

[bskdany]

Expanding on this, we can configure the pi on the ground station to act as a router, that way we don't have to carry an extenral rounter + power for it