Import old content, load from disk

CHDataManagement/Model/LocalizedTag.swift

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+import Foundation
+
+final class LocalizedTag: ObservableObject {
+
+    @Published
+    var urlComponent: String
+
+    /// A custom name, different from the tag id
+    @Published
+    var name: String
+
+    @Published
+    var subtitle: String?
+
+    @Published
+    var description: String?
+
+    /// The image id of the thumbnail
+    @Published
+    var thumbnail: String?
+
+    /// The original url in the previous site layout
+    let originalUrl: String?
+
+    init(urlComponent: String,
+         name: String,
+         subtitle: String? = nil,
+         description: String? = nil,
+         thumbnail: String? = nil,
+         originalUrl: String? = nil) {
+        self.urlComponent = urlComponent
+        self.name = name
+        self.subtitle = subtitle
+        self.description = description
+        self.thumbnail = thumbnail
+        self.originalUrl = originalUrl
+    }
+}
+
+extension LocalizedTag {
+
+    func data() -> FeedEntryData.Tag {
+        .init(
+            name: name,
+            url: "tags/\(urlComponent).html"
+        )
+    }
+}