Remove From On Deck (#2131)

* Allow admins to customize the amount of progress time or last item added time for on deck calculation

* Implemented the ability to remove series from on deck. They will be removed until the user reads a new chapter.

Quite a few db lookup reduction calls for reading based stuff, like continue point, bookmarks, etc.

API/Entities/Enums/ServerSettingKey.cs

@@ -133,5 +133,15 @@ public enum ServerSettingKey
     /// </summary>
     [Description("Cache")]
     CacheSize = 24,
+    /// <summary>
+    /// How many Days since today in the past for reading progress, should content be considered for On Deck, before it gets removed automatically
+    /// </summary>
+    [Description("OnDeckProgressDays")]
+    OnDeckProgressDays = 25,
+    /// <summary>
+    /// How many Days since today in the past for chapter updates, should content be considered for On Deck, before it gets removed automatically
+    /// </summary>
+    [Description("OnDeckUpdateDays")]
+    OnDeckUpdateDays = 26,
 
 }