fix: x-platform loop output

See coop-cloud/organising#178.

cli/app/ps.go

@@ -8,6 +8,8 @@ import (
 	"coopcloud.tech/abra/cli/internal"
 	"coopcloud.tech/abra/pkg/autocomplete"
 	"coopcloud.tech/abra/pkg/client"
+	stack "coopcloud.tech/abra/pkg/upstream/stack"
+	"github.com/buger/goterm"
 	"github.com/docker/cli/cli/command/formatter"
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/filters"
@@ -30,9 +32,11 @@ var appPsCommand = &cli.Command{
 			return nil
 		}
 
-		// TODO: how do we make this update in-place in an x-platform way?
+		goterm.Clear()
 		for {
+			goterm.MoveCursor(1, 1)
 			showPSOutput(c)
+			goterm.Flush()
 			time.Sleep(2 * time.Second)
 		}
 	},