Merge branch 'feature/3.0-TabBarModel' into 'feature/develop_mvp_3'

Setting default status to Tab bar model.

See merge request BPHV_MIPS/mvm_core_ui!828

MVMCoreUI/Atomic/Molecules/HorizontalCombinationViews/TabBarModel.swift

@@ -52,7 +52,7 @@ open class TabBarModel: MoleculeModelProtocol {
         }
     }
     
-    open var style: NavigationItemStyle?
+    open var style: NavigationItemStyle? = .dark
     
     // Must be capped to 0...(tabs.count - 1)
     open var selectedTab: Int = 0
@@ -86,7 +86,9 @@ open class TabBarModel: MoleculeModelProtocol {
         if let index = try typeContainer.decodeIfPresent(Int.self, forKey: .selectedTab) {
             selectedTab = index
         }
-        style = try typeContainer.decodeIfPresent(NavigationItemStyle.self, forKey: .style)
+        if let navStyle = try typeContainer.decodeIfPresent(NavigationItemStyle.self, forKey: .style) {
+            style = navStyle
+        }
     }
               
     open func encode(to encoder: Encoder) throws {