add channel emoji css class

assets/css/default.css

@@ -565,3 +565,7 @@ p,
 
 /* Wider settings name to less word wrap */
 .pure-form-aligned .pure-control-group label { width: 19em; }
+
+.channel-emoji {
+  margin: 0 2px;
+}

src/invidious/comments.cr

@@ -701,7 +701,7 @@ def content_to_comment_html(content, video_id : String? = "")
             str << %(title=") << emojiAlt << "\" "
             str << %(width=") << emojiThumb["width"] << "\" "
             str << %(height=") << emojiThumb["height"] << "\" "
-            str << %(style="margin-right:2px;margin-left:2px;"/>)
+            str << %(class="channel-emoji"/>)
           end
         else
           # Hide deleted channel emoji