add swiftUI code

iOS-SwiftUI-Code/Library/Database/Profile+Date.swift

@@ -0,0 +1,9 @@
+import Foundation
+
+public extension Profile {
+    var lastUpdatedString: String {
+        let dateFormatter = DateFormatter()
+        dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
+        return dateFormatter.string(from: lastUpdated!)
+    }
+}