might as well forward media types

Author: mcmonkey4eva

src/wwwroot/js/genpage/gentab/currentimagehandler.js

@@ -1164,7 +1164,7 @@ function setCurrentImage(src, metadata = '', batchId = '', previewGrow = false,
             includeLinkButton(added.label, added.href, added.is_download, added.title);
         }
         else {
-            includeButton(added.label, added.onclick, '', added.title, null);
+            includeButton(added.label, added.onclick, '', added.title, added.media_types);
         }
     }
     renderButtonsFromDefs();

src/wwwroot/js/genpage/gentab/outputhistory.js

@@ -215,6 +215,7 @@ function buttonsForImage(fullsrc, src, metadata, isCurrentImage = false) {
                 can_multi: reg.can_multi,
                 multi_only: reg.multi_only,
                 max_selected: reg.max_selected,
+                media_types: reg.mediaTypes,
                 onclick: () => reg.action(src)
             });
         }