Fix broken search (#999)

* fix check on stopwords: stopwords is a set
* Fix search facet options
* Remove outdated training options from search field

Author: ksuess

docs/_static/searchtools.js

@@ -114,7 +114,7 @@ function _getBreadcrumbs(item, linkUrl) {
 
 const _displayItem = (item, searchTerms) => {
   const docBuilder = DOCUMENTATION_OPTIONS.BUILDER;
-  const docUrlRoot = DOCUMENTATION_OPTIONS.URL_ROOT;
+  const docUrlRoot = DOCUMENTATION_OPTIONS.URL_ROOT || "";
   const docFileSuffix = DOCUMENTATION_OPTIONS.FILE_SUFFIX;
   const docLinkSuffix = DOCUMENTATION_OPTIONS.LINK_SUFFIX;
   const showSearchSummary = DOCUMENTATION_OPTIONS.SHOW_SEARCH_SUMMARY;
@@ -326,7 +326,7 @@ const Search = {
       // maybe skip this "word"
       // stopwords array is from language_data.js
       if (
-        stopwords.indexOf(queryTermLower) !== -1 ||
+        stopwords.has(queryTermLower) ||
         queryTerm.match(/^\d+$/)
       )
         return;

docs/_templates/components/search-field.html

@@ -26,15 +26,9 @@
         [
           ['content-editing', 'Content Editing for Plone'],
           ['mastering-plone', 'Mastering Plone development'],
-          ['volto_customization','Volto customization for JavaScript beginners'],
+          ['volto-customization','Volto customization for JavaScript beginners'],
           ['customizing-volto-light-theme','Customizing Volto Light Theme'],
-          ['voltohandson','Volto Hands-On (beginner)'],
-          ['voltoaddons','Volto add-ons'],
-          ['effective-volto','Effective Volto (advanced)'],
-          ['testing','Testing'],
-          ['theming','Plone 6 Classic UI Theming'],
           ['plone-deployment','Deployment'],
-          ['workflow','Workflow'],
           ['migrations','Migration best practice'],
           ['contributing', 'Contributing to Plone'],
         ] %}