fix: address verified review findings (terminal-output-1)

Signed-off-by: bircni <bircni@icloud.com>

internal/app/label_export.go

@@ -33,7 +33,7 @@ $ tea label export -R alice/old | tea label import - -R alice/new`, Args: argsEx
 				return err
 			}
 			if a.options.json != "" {
-				return terminal.WriteJSON(destination, items, a.options.json, a.options.jq)
+				return terminal.JSONOutput{Fields: a.options.json, Query: a.options.jq, Safe: output == "" && a.deps.Streams.OutTTY}.Write(destination, items)
 			}
 			var text strings.Builder
 			for _, item := range items {