Only "update all" of those devices that are actually outdated

Hi,

With 30+ esphome devices in my HA installation I'd love to use the "Update all" functionality provided by the dashboard. Unfortunately, this updates really **all** devices - independent of their status. That is, even devices that already have the latest firmware installed are being updated. A smarter way of doing this, and much more useful and user-friendly, is to update only those devices for which a firmware update is available.