added next/prevoius page info to link headers

Domain/Sia.Shared/Protocol/FilteredLinksHeader.cs

@@ -20,5 +20,11 @@ namespace Sia.Shared.Protocol
 
         public override StringValues HeaderValues
             => StringValues.Concat(base.HeaderValues, _filterMetadata.FilterValues());
+
+        protected override StringValues NextPageLinkInfo
+            => StringValues.Concat(base.NextPageLinkInfo, _filterMetadata.FilterValues());
+
+        protected override StringValues PreviousPageLinkInfo
+            => StringValues.Concat(base.PreviousPageLinkInfo, _filterMetadata.FilterValues());
     }
 }

Domain/Sia.Shared/Protocol/LinksHeader.cs

@@ -21,14 +21,18 @@ namespace Sia.Shared.Protocol
         public virtual StringValues HeaderValues =>
             _baseHeaderValues;
 
+        protected virtual StringValues NextPageLinkInfo => _metadata.NextPageLinkInfo;
+
+        protected virtual StringValues PreviousPageLinkInfo => _metadata.PreviousPageLinkInfo;
+
         private StringValues _baseHeaderValues => JsonConvert.SerializeObject(new
         {
             PageNumber = _metadata.PageNumber,
             PageSize = _metadata.PageSize,
             TotalRecords = _metadata.TotalRecords,
             TotalPages = _metadata.TotalPages,
-            NextPageLink = _metadata.NextPageExists ? _urlHelper.Action(_routeName, _metadata.NextPageLinkInfo) : null,
-            PrevPageLink = _metadata.PreviousPageExists ? _urlHelper.Action(_routeName, _metadata.PreviousPageLinkInfo) : null
+            NextPageLink = _metadata.NextPageExists ? _urlHelper.Action(_routeName, NextPageLinkInfo) : null,
+            PrevPageLink = _metadata.PreviousPageExists ? _urlHelper.Action(_routeName, PreviousPageLinkInfo) : null
         });
     }
 }