Common SPIFFS image for all releases
In this SPIFFS image are the files included that the esp needs to host a webserver and create a web UI for managing the config file.
Upload the Image to the ESP module using my upload tool https://github.com/Nikfinn99/ESP-Ota-UI.
The code from inside the image was modified from https://github.com/esp8266/Arduino/tree/master/libraries/ESP8266WebServer/examples/FSBrowser.