feat: Fix risk legend gradient to green -> red

mapfile/template.j2

@@ -173,7 +173,7 @@ END # Layer
        {% for language in languages %}
       "wms_abstract.{{language.language_code}}" "
       <ul style=\"list-style: none; padding: 0;\">
-      <li style=\"margin-bottom: 5px;\"><span style=\"display: inline-block; width: 25px; background: linear-gradient(to right, #0000FF, #FF0000);\">&nbsp;</span> {{language.risk}}</li>
+      <li style=\"margin-bottom: 5px;\"><span style=\"display: inline-block; width: 25px; background: linear-gradient(to right, #00FF00, #FF0000);\">&nbsp;</span> {{language.risk}}</li>
       </ul>
       "
       {% endfor %}