feat: cli: consolidate schedule-related commands (#2402)

* feat: cli: consolidate schedule-related commands

This commit makes the following changes:
- renames autostart -> schedule starat
- renames ttl -> schedule stop
- renames bump -> schedule override
- adds schedule show command
- moves some cli-related stuff to util.go

cli/root.go

@@ -65,8 +65,6 @@ func Root() *cobra.Command {
 	}
 
 	cmd.AddCommand(
-		autostart(),
-		bump(),
 		configSSH(),
 		create(),
 		delete(),
@@ -77,6 +75,7 @@ func Root() *cobra.Command {
 		logout(),
 		publickey(),
 		resetPassword(),
+		schedules(),
 		server(),
 		show(),
 		start(),
@@ -84,7 +83,6 @@ func Root() *cobra.Command {
 		stop(),
 		ssh(),
 		templates(),
-		ttl(),
 		update(),
 		users(),
 		portForward(),