browse/search: Search origins visited at least once by default

swh/web/templates/browse/search.html

@@ -24,7 +24,7 @@ See top-level LICENSE file for more information
   </div>
   <div class="form-check swh-id-option">
     <input class="form-check-input" value="option-origins-with-visit" type="checkbox"
-          id="swh-search-origins-with-visit">
+          id="swh-search-origins-with-visit" checked>
     <label class="form-check-label" for="swh-search-origins-with-visit">only show origins visited at least once</label>
   </div>
 </form>