patron-client: fix sortig of mediatype groups

redef/patron-client/src/frontend/components/Publications.js

@@ -232,13 +232,7 @@ class Publications extends React.Component {
       if (a === 'http://data.deichman.no/mediaType#Book') {
         return -1
       }
-      if (a < b) {
-        return -1
-      }
-      if (a > b) {
-        return 1
-      }
-      return 0
+      return 1
     }
     Object.keys(publicationHoldersByMediaType).forEach(mediaTypeUri => {
       publicationHoldersByMediaType[ mediaTypeUri ].sort(