child molecule fixes

MVMCoreUI/Atomic/Molecules/DesignedComponents/List/LeftVariable/ListLeftVariableIconWithRightCaretBodyTextModel.swift

@@ -18,7 +18,7 @@ public class ListLeftVariableIconWithRightCaretBodyTextModel: ListItemModel, Par
     public var rightLabel: LabelModel
     
     public var children: [MoleculeModelProtocol] {
-        return [image, headlineBody, rightLabel]
+        [image, headlineBody, rightLabel]
     }
     
     //-----------------------------------------------------

MVMCoreUI/Atomic/Molecules/NavigationBar/NavigationItemModel.swift

@@ -91,3 +91,25 @@ open class NavigationItemModel: NavigationItemModelProtocol, MoleculeModelProtoc
         try container.encodeModelIfPresent(titleView, forKey: .titleView)
     }
 }
+
+extension NavigationItemModel: ParentMoleculeModelProtocol {
+    public var children: [MoleculeModelProtocol] {
+        var children: [MoleculeModelProtocol] = []
+        if let line = line {
+            children.append(line)
+        }
+        if let titleView = titleView {
+            children.append(titleView)
+        }
+        if let backButton = backButton {
+            children.append(backButton)
+        }
+        if let leftButtons = additionalLeftButtons {
+            children.append(contentsOf: leftButtons)
+        }
+        if let rightButtons = additionalRightButtons {
+            children.append(contentsOf: rightButtons)
+        }
+        return children
+    }
+}

MVMCoreUI/Atomic/Templates/StackPageTemplateModel.swift

@@ -16,7 +16,7 @@
     public var moleculeStack: StackModel
     
     public override var rootMolecules: [MoleculeModelProtocol] {
-        return [header, moleculeStack, footer].compactMap { $0 }
+        [navigationBar, header, moleculeStack, footer].compactMap { $0 }
     }
     
     //--------------------------------------------------

MVMCoreUI/Atomic/Templates/ThreeLayerModelBase.swift

@@ -18,7 +18,7 @@
     public var footer: MoleculeModelProtocol?
     
     public override var rootMolecules: [MoleculeModelProtocol] {
-        return [header, footer].compactMap { $0 }
+        [navigationBar, header, footer].compactMap { $0 }
     }
     
     //--------------------------------------------------