Create shared AppDefaults and delete platform-specific AppDefaults.

Shared/Defaults/ArticleTextSize.swift

@@ -0,0 +1,49 @@
+//
+//  ArticleTextSize.swift
+//  NetNewsWire
+//
+//  Created by Brent Simmons on 1/26/25.
+//  Copyright © 2025 Ranchero Software. All rights reserved.
+//
+
+import Foundation
+
+enum ArticleTextSize: Int, CaseIterable, Identifiable {
+	case small = 1
+	case medium = 2
+	case large = 3
+	case xlarge = 4
+	case xxlarge = 5
+
+	var id: String { description() }
+
+	var cssClass: String {
+		switch self {
+		case .small:
+			return "smallText"
+		case .medium:
+			return "mediumText"
+		case .large:
+			return "largeText"
+		case .xlarge:
+			return "xLargeText"
+		case .xxlarge:
+			return "xxLargeText"
+		}
+	}
+
+	func description() -> String {
+		switch self {
+		case .small:
+			return NSLocalizedString("Small", comment: "Small")
+		case .medium:
+			return NSLocalizedString("Medium", comment: "Medium")
+		case .large:
+			return NSLocalizedString("Large", comment: "Large")
+		case .xlarge:
+			return NSLocalizedString("Extra Large", comment: "X-Large")
+		case .xxlarge:
+			return NSLocalizedString("Extra Extra Large", comment: "XX-Large")
+		}
+	}
+}