[improvement request] Prevent screen lock

[nenadalm]

When somebody thinks for a while, it can happen that screen turns off. It would be nice if screen was still on. There's an api for that: https://developer.mozilla.org/en-US/docs/Web/API/Screen_Wake_Lock_API

So something like:

navigator.wakeLock?.request("screen").then(() => {
  document.addEventListener("visibilitychange", () => {
    if (document.visibilityState === "visible") {
      navigator.wakeLock.request("screen");
    }
  });
})

should do the trick.

[nstringham]

That's a good idea. Thanks