Retire the zone system: one capture = one parameter set, and re-seam the engine and Sample face into bands

src/shell/instrument/editor_internal.h

@@ -115,7 +115,7 @@ inline int thumbBins(const instrument::ui::BrowserLayout& layout) {
                                  instrument::ui::cardThumbnailRect(layout, 0))));
 }
 
-// Draws the title band with the live readout. Browse/Zone draw their own back button in
+// Draws the title band with the live readout. The Browse modal draws its own back button in
 // place of the nav.
 inline void drawTitleBand(LICE_IBitmap* bmp, const instrument::ui::Rect& title,
                           const std::string& readout) {
@@ -172,7 +172,7 @@ inline void drawKnobFace(LICE_IBitmap* bmp, const instrument::ui::Rect& knobRect
 
 // Draws the pastel spectral keyboard-strip background: each MIDI key column filled with
 // its spectral hue, accidentals darkened with an overlay wash so pitch position reads as
-// a keyboard at a glance. Shared by the setup face + the Zones strip.
+// a keyboard at a glance.
 inline void drawSpectralStrip(LICE_IBitmap* bmp, const instrument::ui::Rect& stripArea) {
     using instrument::ui::StripLayout;
     if (stripArea.width <= 0 || stripArea.height <= 0) return;