Update disqusjs.css

src/disqusjs.css

@@ -73,7 +73,7 @@
     float: left;
     font-size: 15px;
     padding: 12px 8px;
-    color: #656c7a;
+    color: var(--body-color);
     display: block;
     margin: 0 15px 0 0;
     font-weight: 700;