fix: more precise filtering

Closes coop-cloud/organising#305.

cli/app/remove.go

@@ -11,7 +11,6 @@ import (
 	stack "coopcloud.tech/abra/pkg/upstream/stack"
 	"github.com/AlecAivazis/survey/v2"
 	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/api/types/filters"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
 )
@@ -66,8 +65,11 @@ var appRemoveCommand = cli.Command{
 			logrus.Fatalf("%s is still deployed. Run \"abra app undeploy %s\"", app.Name, app.Name)
 		}
 
-		fs := filters.NewArgs()
-		fs.Add("name", app.StackName())
+		fs, err := app.Filters()
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
 		secretList, err := cl.SecretList(context.Background(), types.SecretListOptions{Filters: fs})
 		if err != nil {
 			logrus.Fatal(err)