Fixed a deployment bug where we weren't listening on port properly. New way will force firewall exception dialog on Windows and work across board. Implemented user preferences and ability to update them.

API/Entities/AppUserPreferences.cs

@@ -0,0 +1,21 @@
+using API.Entities.Enums;
+
+namespace API.Entities
+{
+    public class AppUserPreferences
+    {
+        public int Id { get; set; }
+        public ReadingDirection ReadingDirection { get; set; } = ReadingDirection.LeftToRight;
+        public ScalingOption ScalingOption { get; set; } = ScalingOption.FitToHeight;
+        public PageSplitOption PageSplitOption { get; set; } = PageSplitOption.SplitRightToLeft;
+        /// <summary>
+        /// Whether UI hides read Volumes on Details page
+        /// </summary>
+        public bool HideReadOnDetails { get; set; } = false;
+        
+        
+        
+        public AppUser AppUser { get; set; }
+        public int AppUserId { get; set; }
+    }
+}