andark: queue redraws and enable fastload

[cbkerr]

I was using this clock face a lot, so I wanted to improve it. Thanks for the design @HeiLaut

For the draw queuing, I had some problems like:

1. When unlocked, the second hand would not draw right away.
2. The second hand would not move on the second, rather it would move a second after being unlocked.
3. Sometimes locking or unlocking would not trigger the second hand to start drawing.

I tried to address these by using queueDraw and updateState approach from antonclkplus, and it seems to have fixed my problems.

For fast loading, here are my memory leak checks:

 ____                 _
|  __|___ ___ ___ _ _|_|___ ___
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 2v24 (c) 2024 G.Williams
>Bangle.loadWidgets();Bangle.drawWidgets();
=undefined
>process.memory().usage
=4225
>eval(require("Storage").read("andark.app.js"))
=undefined
>process.memory().usage
=5391
>Bangle.setUI()
=undefined
>process.memory().usage
=4271
>eval(require("Storage").read("andark.app.js"))
=undefined
>process.memory().usage
=5392
>Bangle.setUI()
=undefined
>process.memory().usage
=4271

[bobrippling]

Nice fixes! One small comment - we'll give @HeiLaut a few days to check and then I'll merge

[bobrippling]

Alright that's time - thanks for the PR!