fix: only render language icon if available

ckanext/odsh/templates/package/snippets/info.html

@@ -37,7 +37,9 @@ Example:
                 {% if language_of_package != 'Deutsch' and language_of_package %}
                 <div>{{ _('language') }}:</div>
                 <p>
+                    {% if language_icon %}
                     <img src={{ language_icon }} />
+                    {% endif %}
                     {{ language_of_package }}
                 </p>
                 {% endif %}

ckanext/odsh/templates/snippets/package_item.html

@@ -63,7 +63,9 @@ Example:
         {% endif %}
         {% if language_of_package != 'Deutsch' and language_of_package %}
         <div class='package-info-pill'>
+            {% if language_icon %}
             <img src={{ language_icon }} />
+            {% endif %}
             {{ language_of_package }}
         </div>
         {% endif %}