feat(ui): render the Display panel's Scope and Celestial controls from the store

src/ui/displayControls.js

@@ -73,9 +73,3 @@ export function bindDisplayControls({ elements, actions }) {
     },
   };
 }
-
-/** Keep the native Scope checkbox and feather availability in step with the mask. */
-export function syncScopeControls(toggle, featherSlider, enabled) {
-  if (toggle) toggle.checked = enabled;
-  if (featherSlider) featherSlider.disabled = !enabled;
-}