WIP: ssh remoting: Add upload_binary field to SshConnections (#19748)

This removes the old `remote_server { "download_binary_on_host": bool }`
field and replaces it with a `upload_binary: bool` on every
`ssh_connection`.


@ConradIrwin it compiles, it connects, but I haven't tested it really
yet

Release Notes:

- N/A

---------

Co-authored-by: Conrad <conrad@zed.dev>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

crates/zed/src/zed.rs

@@ -881,12 +881,6 @@ pub fn open_new_ssh_project_from_project(
         return Task::ready(Err(anyhow::anyhow!("Not an ssh project")));
     };
     let connection_options = ssh_client.read(cx).connection_options();
-    let nickname = recent_projects::SshSettings::get_global(cx).nickname_for(
-        &connection_options.host,
-        connection_options.port,
-        &connection_options.username,
-    );
-
     cx.spawn(|_, mut cx| async move {
         open_ssh_project(
             connection_options,
@@ -897,7 +891,6 @@ pub fn open_new_ssh_project_from_project(
                 replace_window: None,
                 env: None,
             },
-            nickname,
             &mut cx,
         )
         .await