Issue #3: Load selected blocklist from Settings. Load configured DoH from system. Update UI accordingly.

dns/ViewModel.swift

@@ -36,6 +36,40 @@ class ViewModel: NSObject, ObservableObject {
     private let log = Logger(subsystem: String(describing: ViewModel.self), category: String(describing: ViewModel.self))
 
 
+    override init() {
+        super.init()
+
+        isProgrammaticChange = true
+        blocklist = Settings.blocklist
+
+        Task {
+            do {
+                try await manager.loadFromPreferences()
+            }
+            catch {
+                log.error("Error loading preferences: \(error)")
+
+                return
+            }
+
+            if let settings = manager.dnsSettings {
+                for dnsServer in BlocklistOption.allCases {
+                    if settings.servers.contains(dnsServer.ipv4) {
+                        await MainActor.run {
+                            isProgrammaticChange = true
+                            blocklist = dnsServer
+                            isProgrammaticChange = true
+                            isDnsEnabled = true
+                        }
+
+                        break
+                    }
+                }
+            }
+        }
+    }
+
+
     func toggleDns() {
         guard !isProgrammaticChange else {
             // Reset, so next one is recognized as coming from the user again.