Library that Exports my simplified vanilla JS version of WaitForKeyElement

which is a simple async function that returns a Promise that resolves to an element by a given selector, when that element is found

Usage:

WaitForKeyElement(querySelectorString, optionalTimeoutInMilliseconds)

Example 1:

WaitForKeyElement('#someElement', 10000).then((foundElement) => {
  //do things with foundElement
});

Example 2:

//in async context*
const foundElement = await WaitForKeyElement('#someElement'));
//do things with foundElement