Support and list multiple deployments

[matifali]

It would be nice to list and connect to workspaces from multiple deployments.

[code-asher]

In case it helps, the JetBrains plugin supports multiple deployments by using separate config directories for each one. For example ~/.local/share/coder-gateway/dev.coder.com. Then in the SSH config we use the --global-config flag in the proxy command.

So we could do the same here but it could be cool if the Coder CLI itself supported multiple deployments.

[matifali]

But does the Coder's JetBrains Gateway plugin list and display multiple deployments?

[code-asher]

Not at the same time, except in the recent connections window where connections from multiple deployments will be shown (but not organized by deployment, I think it is in recently connected order or workspace name order or something like that).

Would be cool to list all workspaces from multiple deployments grouped by deployment. Code would be the same as the recent connections windows just without filtering for recently connected workspaces.

[matifali]

Lack of this feature is causing issues like #173