feat(comment): add support for Comentario (#1088)

* Add support for comentario.

* feat: add Comentario client configuration options in TOML

* fix: format theme attribute in comentario comments component

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Co-authored-by: Jimmy Cai <jimmy@cai.im>

config/_default/params.toml

@@ -161,4 +161,16 @@ SortBy              = "default"
 
     [comments.cusdis]
         host = "https://cusdis.com"
-        id = ""
+        id = ""
+
+    # Comentario client configuration
+    [comments.comentario]
+        url = ""
+        autoInit = false
+        autoNonInteractiveSso = false
+        cssOverride = ""
+        lang = ""
+        liveUpdate = false
+        maxLevel = 0
+        noFonts = false
+        theme = ""