fix: exit with non-zero status on SSH command failure

mtm-ssh-menu

@@ -186,4 +186,8 @@ const hostIndex = Number(await tuiMenu());
 const cmd = buildSSHCommnand(config.hosts[hostIndex]);
 console.log(cmd.join(" "));
 
+try {
 	await $`${cmd}`;
+} catch (error) {
+	process.exit(1);
+}