show ssh connection errors

terminus-ssh/src/services/ssh.service.ts

@@ -117,6 +117,7 @@ export class SSHService {
                 agent = process.env.SSH_AUTH_SOCK
             }
 
+            try {
                 ssh.connect({
                     host: connection.host,
                     port: connection.port || 22,
@@ -131,6 +132,9 @@ export class SSHService {
                     keepaliveCountMax: connection.keepaliveCountMax,
                     readyTimeout: connection.readyTimeout,
                 })
+            } catch (e) {
+                this.toastr.error(e.message)
+            }
 
             let keychainPasswordUsed = false