search: adapt suggestions to the locale

- Presents the suggestions as the query is typed to the user defined
  locale.
- Closes #1509.

Co-Authored-by: Bertrand Zuchuat <bertrand.zuchuat@rero.ch>

rero_ils/theme/templates/rero_ils/frontpage.html

@@ -33,11 +33,20 @@ <h2>{{ _('A wealth of knowledge just a click away') }}</h2>
     </header>
 
     <div class="container d-none d-md-block">
-      <main-search-bar placeholder="{{ _('What\'s on your mind?') }}" size="large" viewcode="{{ viewcode or config.RERO_ILS_SEARCH_GLOBAL_VIEW_CODE }}"></main-search-bar>
+      <main-search-bar
+        placeholder="{{ _('What\'s on your mind?') }}"
+        viewcode="{{ viewcode or config.RERO_ILS_SEARCH_GLOBAL_VIEW_CODE }}"
+        language="{{ current_i18n.locale.language[:2] }}"
+        size="large"
+      ></main-search-bar>
     </div>
 
     <div class="container d-block d-md-none">
-      <main-search-bar placeholder="{{ _('What\'s on your mind?') }}" viewcode="{{ viewcode or config.RERO_ILS_SEARCH_GLOBAL_VIEW_CODE }}"></main-search-bar>
+      <main-search-bar
+        placeholder="{{ _('What\'s on your mind?') }}"
+        viewcode="{{ viewcode or config.RERO_ILS_SEARCH_GLOBAL_VIEW_CODE }}"
+        language="{{ current_i18n.locale.language[:2] }}"
+      ></main-search-bar>
     </div>
 
     <footer class="text-center bg-danger text-white">

rero_ils/theme/templates/rero_ils/header.html

@@ -36,7 +36,11 @@
 
         {%- block navbar_search %}
           <div class="align-self-center pr-2 flex-grow-1">
-            <main-search-bar placeholder="{{ _('Search') }}" viewcode="{{ viewcode or config.RERO_ILS_SEARCH_GLOBAL_VIEW_CODE }}"></main-search-bar>
+            <main-search-bar
+              placeholder="{{ _('Search') }}"
+              viewcode="{{ viewcode or config.RERO_ILS_SEARCH_GLOBAL_VIEW_CODE }}"
+              language="{{ current_i18n.locale.language[:2] }}"
+            ></main-search-bar>
           </div>
         {%- endblock navbar_search %}