Use radius instead of rw when defining sliderEdgeOffset

A sliderEdgeOffset greater than radius will cause the pointer
to draw incorrectly. Using radius instead of radius * 2, which
is how we get rw, makes the reasonable bounds of the offset
more clear.

We could clip it at sliderEdgeOffset > radius, but that seems
excessive, as the condition could only obtain due to coder error.

libs/tote_bag/juce_gui/lookandfeel/LookAndFeel.cpp

@@ -140,7 +140,7 @@ void LookAndFeel::drawRotarySliderBase (juce::Graphics& g,
 
     // Increasing this value will cause the pointer to be drawn closer
     // to the center of the slider.
-    const auto sliderEdgeOffset = juce::roundToInt (juce::jmax ((rw * .05f), 1.0f));
+    const auto sliderEdgeOffset = juce::roundToInt (juce::jmax ((radius * .1f), 1.0f));
     const auto pointerY = initialPointerY + sliderEdgeOffset;
 
     const auto cornerSize = pointerThickness * .35f;