[cloud] Fix password ssh key (#568)

The stepper is stepping over the password prompt. Remove it for now.

Using a password protected key, I stopped ssh-agent, deleted the devbox vm socket, and deleted github_username

`devbox cloud shell`

<img width="984" alt="image" src="https://user-images.githubusercontent.com/544948/216123883-99f85212-1d77-4386-a5f5-488cda04b4b4.png">

Author: mikeland73

internal/cloud/cloud.go

@@ -76,19 +76,19 @@ func Shell(w io.Writer, projectDir string, githubUsername string) error {
 	}
 
 	if vmHostname == "" {
-		stepVM := stepper.Start(w, "Creating a virtual machine on the cloud...")
+		color.New(color.FgGreen).Fprintln(w, "Creating a virtual machine on the cloud...")
 		// Inspect the ssh ControlPath to check for existing connections
 		vmHostname = vmHostnameFromSSHControlPath()
 		if vmHostname != "" {
 			debug.Log("Using vmHostname from ssh socket: %v", vmHostname)
-			stepVM.Success("Detected existing virtual machine")
+			color.New(color.FgGreen).Fprintln(w, "Detected existing virtual machine")
 		} else {
 			var region string
 			vmHostname, region, err = getVirtualMachine(sshClient)
 			if err != nil {
 				return err
 			}
-			stepVM.Success("Created a virtual machine in %s", fly.RegionName(region))
+			color.New(color.FgGreen).Fprintf(w, "Created a virtual machine in %s\n", fly.RegionName(region))
 
 			// We save the username to local file only after we get a successful response
 			// from the gateway, because the gateway will verify that the user's SSH keys
@@ -101,13 +101,13 @@ func Shell(w io.Writer, projectDir string, githubUsername string) error {
 	}
 	debug.Log("vm_hostname: %s", vmHostname)
 
-	s2 := stepper.Start(w, "Starting file syncing...")
+	color.New(color.FgGreen).Fprintln(w, "Starting file syncing...")
 	err = syncFiles(username, vmHostname, projectDir)
 	if err != nil {
-		s2.Fail("Starting file syncing [FAILED]")
+		color.New(color.FgRed).Fprintln(w, "Starting file syncing [FAILED]")
 		return err
 	}
-	s2.Success("File syncing started")
+	color.New(color.FgGreen).Fprintln(w, "File syncing started")
 
 	s3 := stepper.Start(w, "Connecting to virtual machine...")
 	time.Sleep(1 * time.Second)