Adding Server with no control stream fails

[drewbotts]

Adding a server that has a system that does not support control streams seems to cause an issue.

Testable Case:

• Start an empty OSH node
• Run OSH Android app on a phone and push the data to the empty OSH node
• Try to add the server on OSH Viewer

This will produce an error on adding the server. If you comment out the following line it will successfully add the server:

osh-viewer/src/components/servers/AddServer.tsx

Line 134 in 052befa

await fetchControls(server, true, system).then();