feat(viewer-lib): Updates on mouse orbiting:

- When clicking outside of the model, oribitig will switch to polar and use the last computed origin (which is still going to be based on the last pivot point)
Made the pivot sphere speckle blue
The pivot sphere now only shows when clicking on objects, when clicking outside of the model it will not show

packages/viewer/src/modules/extensions/controls/SmoothOrbitControls.ts

@@ -218,7 +218,7 @@ export class SmoothOrbitControls extends SpeckleControls {
     this._options = Object.assign({}, options)
     this.setDamperDecayTime(this._options.damperDecay)
 
-    const billboardMaterial = new SpeckleBasicMaterial({ color: 0x43af11 }, [
+    const billboardMaterial = new SpeckleBasicMaterial({ color: 0x047efb }, [
       'BILLBOARD_FIXED'
     ])
     billboardMaterial.opacity = 0.75
@@ -1017,9 +1017,12 @@ export class SmoothOrbitControls extends SpeckleControls {
       if (res && res.length) {
         this.pivotPoint.copy(res[0].point)
         this.usePivotal = true
+        this.orbitSphere.visible = this._options.showOrbitPoint
+      } else {
+        this.usePivotal = false
+        this.orbitSphere.visible = false
       }
     }
-    this.orbitSphere.visible = this._options.showOrbitPoint
 
     if (this.pointers.length > 2) {
       return