[demo] Live editor with realtime previews of esphome display component

@gadicc there are some examples here GUITION 4" 480x480 ESP32-S3-4848S040 Smart Display with LVGL

And although it’s not esphome, there are great examples of lvgl projects here. Overview - openHASP and Example layouts: Look what I built ! · HASwitchPlate/openHASP · Discussion #37 · GitHub