Update ESP flasher UI to block flashing with no port

ajmcquilkin / meshtastic-flasher

An experimental desktop application for flashing Meshtastic mesh radio firmware onto NRF and ESP32 devices.

https://meshtastic.org/

GNU General Public License v3.0

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Open ajmcquilkin opened 1 year ago

ajmcquilkin commented 1 year ago

Currently, the flasher doesn't make it clear that an ESP flashing port is empty. Block flashing without a directory being selected.