Redesign stats menu

[PiTheGuy]

Closes #283

[supersaiyansubtlety]

The new dialog looks great, thanks for this!
It's much easier to get an idea of the state of things with the information presented visually.

Just a few nitpicks and some size/scale issues.

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The settings button get misaligned if you resize the window

It should probably stay at the bottom, or disabling resizing is probably fine, too.

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Not everything scales

Scaling is missing for:

• the "Active Settings" label
• the overall percentage
• the corner radius of individual progress bars

50%	100%	200%

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[supersaiyansubtlety]

Found another issue with resizing (shrinking) the dialog:

Making the scroll pane fill BOTH and giving it non-zero y weight partially fixes it:

But it still has a vertical scroll bar despite having empty space below it; I think the overall stat bar circle is taking up space even though it's not being rendered.