[FEATURE] Settings Option to make the presence of the Fronmatter Key that initiates the (timelines) to be the true/false instead of "aat-render-enabled"

[giittyy]

Is your feature request related to a problem? Please describe. No

Describe the solution you'd like A toggle in the settings menu that uses the presence of the timelines key as a means to find the event instead of the separate key aat-render-enabled

Describe alternatives you've considered Be able to edit the "aat-render-enabled" like users can with other keys.

[April-Gras]

That's easy enough, I'll wrap up the work on #124 then this will be done

[giittyy]

Awesome! Thank you!