GUI: DIY Flasher

[unlogisch04]

Currently, there is just a error "Could not upload the firmware" as a error when the flasher failed:

But in the console you can see that it fails with additional information like it is a Unsupported chip:

The above is for Serial Upload.

OTA does not check if the target is suited for the firmware. (ESP8266 but image is ESP32-C3,...)

I belive that there is currently only the board to verify. But that also leads to some other problems to not correct the upload.

Following todo:

• Add errors about unsuported chips.
• Add a way to verify that the firmware is valid for the upload target. (will need changes on FW, Flasher tool, and GUI