Merge branch 'bugfix/carousel_indicator_missing' into 'develop'

Digital ACT191 defect - Carousel indicator disappearing fix.

### Summary
Missing carousel indicator.

Co-authored-by: Scott Pfeil <Scott.Pfeil3@verizonwireless.com>

See merge request https://gitlab.verizon.com/BPHV_MIPS/mvm_core_ui/-/merge_requests/1109

MVMCoreUI/Atomic/Atoms/Views/CarouselIndicator/CarouselIndicatorModel.swift

@@ -26,7 +26,7 @@ open class CarouselIndicatorModel: CarouselPagingModelProtocol, MoleculeModelPro
     /// Sets the current Index to focus on.
     public var currentIndex: Int = 0
     public var animated: Bool = true
-    public var hidesForSinglePage: Bool = false
+    public var hidesForSinglePage: Bool = true
     public var inverted: Bool = false
     /// Set true to make the accessibility value as "Slide #currentPage of #totalPage", otherwise will be "Page #currentPage of #totalPage", default is false
     public var accessibilityHasSlidesInsteadOfPage: Bool = false

MVMCoreUI/Atomic/Organisms/Carousel/Carousel.swift

@@ -69,7 +69,7 @@ open class Carousel: View {
     public var delegateObject: MVMCoreUIDelegateObject?
     
     private var size: CGFloat?
-    
+        
     // Updates the model and index.
     public func updateModelIndex() {
         (model as? CarouselModel)?.index = pageIndex
@@ -90,12 +90,29 @@ open class Carousel: View {
         showPeaking(false)
         
         // Go to current cell. layoutIfNeeded is needed otherwise cellForItem returns nil for peaking logic. The dispatch is a sad way to ensure the collection view is ready to be scrolled.
-        guard let model = model as? CarouselModel, !model.molecules.isEmpty,
+        guard let model = model as? CarouselModel, !model.molecules.isEmpty else { return }
-              (model.paging == true || loop == true) else { return }
+        guard (model.paging == true || loop == true) else {
+            DispatchQueue.main.async { [self] in
+                updatePagerVisibility()
+            }
+            return
+        }
         DispatchQueue.main.async { [self] in
             collectionView.scrollToItem(at: IndexPath(row: currentIndex, section: 0), at: itemAlignment, animated: false)
             collectionView.layoutIfNeeded()
             showPeaking(true)
+            updatePagerVisibility()
+        }
+    }
+       
+    /// Updates if the pager is visible or not.
+    private func updatePagerVisibility() {
+        guard let pagingView = pagingView else { return }
+        let shouldHidePager = collectionView.contentSize.width < bounds.width
+        if (shouldHidePager && !pagingView.isHidden) || (!shouldHidePager && pagingView.isHidden) {
+            pagingView.isHidden = shouldHidePager
+            pagingBottomPin?.isActive = !shouldHidePager
+            delegateObject?.moleculeDelegate?.moleculeLayoutUpdated(self)
         }
     }
     
@@ -140,16 +157,6 @@ open class Carousel: View {
             (cell as? MVMCoreViewProtocol)?.updateView(size)
         }
         layoutCollection()
-        
-        // Check must be dispatched to main for the layout to complete in layoutCollection.
-        DispatchQueue.main.async { [self] in
-            let shouldHidePager = molecules?.count ?? 0 < 2 || collectionView.contentSize.width < bounds.width
-            if let pagingView = pagingView, shouldHidePager != pagingView.isHidden {
-                pagingView.isHidden = shouldHidePager
-                pagingBottomPin?.isActive = !shouldHidePager
-                delegateObject?.moleculeDelegate?.moleculeLayoutUpdated(self)
-            }
-        }
     }
     
     //--------------------------------------------------
@@ -244,7 +251,7 @@ open class Carousel: View {
         
         var pagingView: (MoleculeViewProtocol & CarouselPageControlProtocol)? = nil
         if let molecule = molecule,
-           (!molecule.hidesForSinglePage || numberOfPages > 1) {
+           (numberOfPages > 1 || !molecule.hidesForSinglePage) {
             pagingView = ModelRegistry.createMolecule(molecule, delegateObject: delegateObject) as? (MoleculeViewProtocol & CarouselPageControlProtocol)
             pagingMoleculeName = molecule.moleculeName
         } else {