Persist remote ssh hosts outside of the default config file

[KorigamiK]

As of now, the configuration for remote projects in zed is stored in settings.json as the following:

"ssh_connections": [
  {
    "host": "************",
    "username": "*********",
    "upload_binary_over_ssh": false,
    "projects": [
      { "paths": ["**********"] },
      { "paths": ["*******************"] }
    ]
  }
],

Notice however, I had to redact the IP address and the project paths in the config since it poses privacy concerns on how I want to share and store my zed config file.

For this reason I propose another location of storing the project and remote config in a separate location that can remain private and isolate from the main config for better privacy for users.

Similar to how vscode does it via the remote-ssh extension, having a separate hosts.json configuration would be ideal.

Please let me know if it makes sense, and I can contribute this feature