a11y: openlibhums#4839 full-text-search olh contextual h1

Author: StephDriver

src/themes/OLH/templates/journal/full-text-search.html

@@ -20,7 +20,7 @@ <h1>Searching for: <i>{{ search_term }}</i></h1>
             {% elif keyword %}
                 <h1>Keyword: <i>{{ keyword }}</i></h1>
             {% else %}
-                <h1>{% trans 'All Articles' %}</h1>
+                <h1>{% trans 'Article Search Results' %}</h1>
             {% endif %}
         </div>
         <section class="invisible-landmark" aria-label="Results">