resolve issues #342 & #362 make indexed things searchable

- previous default was not to make them searchable (because too  many things were duplicated)
- the duplicates have now been reduced.
- users who have used the site before will need to remove the localstorage to over-ride the previous default.

Website/plugins/options-search/options-search.js

@@ -39,7 +39,7 @@ document.addEventListener('DOMContentLoaded', function () {
         searchOptions  = {
             "loose": false,
             "headings": true,
-            "indexed": false,
+            "indexed": true,
             "primary": true,
             "composite": true,
             "newtab": false,