fix notifications showing thumbnail of last song

[Araxeus]

because of the delay in await getImage() in songInfo.js, if the video sends a pause/play event before getImage() finishes, it will send callbacks with the new songInfo - but with the old songInfo.image + everything that comes after that await in the code

and thats because handleData() function updates some of the songInfo, then tries to download the image which takes a few miliseconds. so if the callbacks from playPause are triggered meanwhile, it will have new data from before the await getImage() but not the rest since it wasn't updated yet.

I hope this explanation was clear enough. if not then I can try explaining more clearly

[Araxeus]

On another note, this commit 4d4ac56 breaks stuff for me for some reason

deleting the NODE_OPTIONS= part in package.json fixes this (which I had to do to test this PR, tho I didn't commit that change here yet)

[th-ch]

Looks good, thanks for the improvement! ✅
For the NODE_OPTIONS= bug, it seems it only works on Unix systems, I'll give it a look!