Fix ColorPicker Height if it doesn't fit on screen

[CWO333]

Just a small change to the Color Picker so it will show properly to those who may not have 950px+ height for their screen resolution. Some older HD monitors are 1366x768 which will make the Color Picker impossible to use. I added a vertical scrollbar that will only show if the height is restricted and it will lower the height of the form to Resolution height - 100.

[martinmine]

From a visual aspect I think it could be handled a bit better but I think this is sufficient for those edge-cases where players don't have a high enough resolution on their monitor. Also got some feedback from some that even on 1920x1080 resolution, they could face challenges with this window because the UI scaling in Windows was set to 125%. Having scaling set to 100% in those cases would be good enough for the window to show correctly.

It looks like this on my system with the side bar:

[CWO333]

So Sonicflare and I were talking through the whole process and he came up with a better way. The window itself will automatically be scaled down instead of becoming scrollable. I experimented a bit and this will work all the way down to a height of 634. It also worked with 1080 with 125% scaling.

[martinmine]

That looks interesting. Any chance you can make it follow the aspect ratio? As with your proof of concept it only scales the height of the window. This leads to that the window becomes stretched and the header (the color picker title) becomes misaligned with the background.

[CWO333]

Mostly fixed the aspect ratio with a close approximation. It's barely a bit off but only by a few pixels.

[martinmine]

Awesome work, thanks a lot!