feat(display): render the style parameters from the display store

VisualSettings publishes the active style's parameter rows to the display
store, and the Display panel renders them with the shared row component;
a moved slider goes back through the store's setStyleParameter action.
The readout snaps a value to its step as the browser does, half-steps up
and an off-grid maximum down. A preset that resets the shown style's
uniforms republishes its rows, input for another style's parameters is
ignored, and a stopped owner takes its rows with it unless a newer owner
has published since. createStyleParameters is deprecated and builds its
rows the same way.

src/ui/shellFacade.js

@@ -413,14 +413,6 @@ export class ShellFacade {
     this._visualSettings._detectionAllocationPreference = value;
   }
 
-  get _styleParameters() {
-    return this._visualSettings._styleParameters;
-  }
-
-  set _styleParameters(value) {
-    this._visualSettings._styleParameters = value;
-  }
-
   get _irBoostActive() {
     return this._visualSettings._irBoostActive;
   }