feat: added error to GetContextEndpoint

this ill make the progam not fail if there is a non-docker swarm context

cli/server.go

@@ -26,10 +26,16 @@ var serverListCommand = &cli.Command{
 
 		serverNames := config.ReadServerNames()
 		for _, serverName := range serverNames {
+
 			var row []string
 			for _, ctx := range contexts {
+				endpoint, err := client.GetContextEndpoint(ctx)
+				if err != nil {
+					// This most likely means its a non-docker swarm context and we can ignore
+					continue
+				}
 				if ctx.Name == serverName {
-					row = []string{serverName, client.GetContextEndpoint(ctx)}
+					row = []string{serverName, endpoint}
 				}
 			}
 			if len(row) == 0 {