feat: Display Website Filing Information on cloudwego.cn (#1495)

Signed-off-by: rogerogers <rogers@rogerogers.com>

Author: rogerogers

layouts/partials/filing.html

@@ -0,0 +1,4 @@
+{{ $baseURL := urls.Parse .Site.BaseURL }}
+{{- if hasSuffix $baseURL.Hostname "cloudwego.cn" -}}
+    <div class="text-white mt-1">备案号：<a href="https://beian.miit.gov.cn/" target="_blank" rel="noopener">京ICP备18026016号-10</a></div>
+{{- end -}}

layouts/partials/footer.html

@@ -29,6 +29,7 @@
             <a class="cloudwego-link" href="{{ .url }}" target="_blank" rel="noopener">{{ .name }}</a>
           {{ end }}
         </p>
+        {{ partial "filing.html" . }}
       </div>
     </div>
   </div>