Please make the instrument editor wider and not longer

[tbyunomi]

We've grown a lot in terms of instruments and members, but I want to focus on instruments right now, personally I think the instrument editor/gui is wayyy to long to navigate comfortably, as shown in this image below:

As you can see, the window is so long that it takes up MORE than the entire height of the sequencer. Not to mention that I have to drag it up and down.

I have a couple suggestions to this.

1. Make the window take up the the entire sequencer, so that we won't have to drag as much as before.
(Sidenote, if you think that the downsides of this is that it literally covers the sequencer, you wouldn't need to see the sequencer lol, just close the window.)

2. Make the window size changable, with the instruments changing in size according to the window itself.

I hope this helps because even on my bigger screen laptop, its still wayy too big.