Add locale label as first item in the page chooser breadcrumb

wagtail/admin/templates/wagtailadmin/shared/chooser_breadcrumb.html

@@ -3,6 +3,7 @@
 <ul class="breadcrumb">
     {% for page in page.get_ancestors.specific %}
         {% if page.is_root %}
+            {% if show_locale_labels %}<li class="breadcrumb-item"><span class="status-tag primary">{{ page.locale.get_display_name }}</span></li>{% endif %}
             {% trans 'Home' as home %}
             <li class="breadcrumb-item home"><a href="{% url 'wagtailadmin_choose_page_child' page.id %}{% querystring p=None %}" class="breadcrumb-link navigate-pages">{% icon name="home" class_name="home_icon" title=home %}{% icon name="arrow-right" class_name="arrow_right_icon" %}</a></li>
         {% elif forloop.last %}