gktorrent: fix config .torrent option

src/Jackett.Common/Definitions/gktorrent.yml

@@ -48,6 +48,13 @@ caps:
     music-search: [q]
 
 settings:
+  - name: downloadlink
+    type: select
+    label: Download link
+    default: "magnet:?xt="
+    options:
+      "get_torrent": ".torrent"
+      "magnet:?xt=": "magnet"
   - name: multilang
     type: checkbox
     label: Replace MULTI by another language in release name
@@ -69,7 +76,7 @@ settings:
     default: false
 
 download:
-  selector: a[href^="magnet:?xt="]
+  selector: a[href*="{{ .Config.downloadlink }}"]
   attribute: href
 
 search: