configure utterances to follow dark/light theme

Author: sonjh1217

_config.yml

@@ -109,14 +109,14 @@ toc: true
 
 comments:
   # Global switch for the post-comment system. Keeping it empty means disabled.
-  provider: # [disqus | utterances | giscus]
+  provider: utterances
   # The provider options are as follows:
   disqus:
     shortname: # fill with the Disqus shortname. › https://help.disqus.com/en/articles/1717111-what-s-a-shortname
   # utterances settings › https://utteranc.es/
   utterances:
-    repo: # <gh-username>/<repo>
-    issue_term: # < url | pathname | title | ...>
+    repo: "sonjh1217/sonjh1217.github.io"
+    issue_term: pathname
   # Giscus options › https://giscus.app
   giscus:
     repo: # <gh-username>/<repo>

_layouts/post.html

@@ -174,15 +174,6 @@ <h1 data-toc-skip>{{ page.title }}</h1>
       {% include post-sharing.html lang=lang %}
 
     </div>
-    
-    <script src="https://utteranc.es/client.js"
-            repo="sonjh1217/sonjh1217.github.io"
-            issue-term="pathname"
-            label="comments"
-            theme="github-light"
-            crossorigin="anonymous"
-            async>
-    </script>
     <!-- .post-tail-bottom -->
   </div>
   <!-- div.post-tail-wrapper -->