Rework storage structs, link preview

CHDataManagement/Model/Item/ItemId.swift

@@ -1,33 +1,11 @@
 
 struct ItemId {
 
-    let language: ContentLanguage
+    let type: ItemType
 
-    let itemType: ItemType
+    let id: String?
 }
 
-extension ItemId: Equatable {
-
-    static func == (lhs: ItemId, rhs: ItemId) -> Bool {
-        lhs.language == rhs.language &&
-        lhs.itemType == rhs.itemType
-    }
-}
-
-extension ItemId: Hashable {
-
-    func hash(into hasher: inout Hasher) {
-        hasher.combine(language)
-        hasher.combine(itemType.id)
-    }
-}
-
-extension ItemId: Comparable {
+extension ItemId: Codable {
     
-    static func < (lhs: ItemId, rhs: ItemId) -> Bool {
-        guard lhs.itemType == rhs.itemType else {
-            return lhs.itemType < rhs.itemType
-        }
-        return lhs.language < rhs.language
-    }
 }