Use giscus instead of utterances

templates/blog-page.html

@@ -15,10 +15,19 @@
 	</i></strong>
 </p>
 {{ page.content | safe }}
-<script src="https://utteranc.es/client.js"
-        repo="karx1/site-comments"
-        issue-term="pathname"
-        theme="photon-dark"
+<script src="https://giscus.app/client.js"
+        data-repo="karx1/site-comments"
+        data-repo-id="R_kgDOH0rjbA"
+        data-category="Announcements"
+        data-category-id="DIC_kwDOH0rjbM4CYkSv"
+        data-mapping="pathname"
+        data-strict="0"
+        data-reactions-enabled="1"
+        data-emit-metadata="0"
+        data-input-position="bottom"
+        data-theme="cobalt"
+        data-lang="en"
+        data-loading="lazy"
         crossorigin="anonymous"
         async>
 </script>