when changing the sort order of the blocks list, go back to page 1

views/blocks.pug

@@ -7,10 +7,10 @@ block content
 	nav(aria-label="Page navigation")
 		ul(class="pagination justify-content-center")
 			li(class="page-item", class=(sort == "asc" ? "active" : false))
-				a(class="page-link", href=(sort == "asc" ? "javascript:void(0)" : "/blocks?limit=" + limit + "&offset=" + offset + "&sort=asc"))
+				a(class="page-link", href=(sort == "asc" ? "javascript:void(0)" : "/blocks?limit=" + limit + "&offset=0" + "&sort=asc"))
 					span(aria-hidden="true") Oldest blocks first
 			li(class="page-item", class=(sort == "desc" ? "active" : false))
-				a(class="page-link", href=(sort == "desc" ? "javascript:void(0)" : "/blocks?limit=" + limit + "&offset=" + offset + "&sort=desc"))
+				a(class="page-link", href=(sort == "desc" ? "javascript:void(0)" : "/blocks?limit=" + limit + "&offset=0" + "&sort=desc"))
 					span(aria-hidden="true") Newest blocks first
 
 	include includes/blocks-list.pug