Bulk Add to Collection (#674)

* Fixed the typeahead not having the same size input box as other inputs

* Implemented the ability to add multiple series to a collection through bulk operations flow. Updated book parser to handle "@import url('...');" syntax as well as @import '...';

* Implemented the ability to create a new Collection tag via bulk operations flow.

API/Entities/ServerSetting.cs

@@ -8,6 +8,9 @@ namespace API.Entities
     {
         [Key]
         public ServerSettingKey Key { get; set; }
+        /// <summary>
+        /// The value of the Setting. Converter knows how to convert to the correct type
+        /// </summary>
         public string Value { get; set; }
 
         /// <inheritdoc />