Add further ignores for DSpace 6.x filters

dateIssued_page seems to be entirely broken on many instances (or in general?), but more than 10 pages (of 10 values each) should hardly ever be useful anyway since it's a year-based filter on all instances I've seen.

Author: JustAnotherArchivist

db/ignore_patterns/dspace6.json

@@ -2,7 +2,10 @@
 	"name": "dspace6",
 	"patterns": [
 		"/discover\\?((.*&)?filtertype(_\\d+)?=){2}",
+		"/search-filter\\?(.*&)?filtertype(_\\d+)?=",
 		"/simple-search\\?((.*&)?(filter_type(_\\d+)?|filtertype)=){2}",
+		"/simple-search\\?(?=(.*&)?(filter_type(_\\d+)?|filtertype)=)(.*&)?(author|subject|dateIssued)_page=",
+		"[?&]dateIssued_page=\\d{2,}(&|$)",
 		"[?&]starts_with="
 	],
 	"type": "ignore_patterns"