5b52abc1 copied `<label>` and `<input>` from the `loadedittrackForm` for
consistency, but missed to add some corresponding code to `NoGoAreas.js`.
After completing the implementation, the filename for loading no-go areas is now
displayed after selecting a file just like in the "Load track as route" dialog.
Test Plan:
- Open "Load no-go areas" dialog.
- Browse and select file.
- The filename should now be shown next to "Browse".
8b9fda47ad