chore: update channel icon

src/common/component/ChannelIcon.js

@@ -8,9 +8,13 @@ const Styled = styled.div`
     fill: #d0d5dd;
   }
 `;
-export default function ChannelIcon({ personal = false, muted = false }) {
+export default function ChannelIcon({
+  personal = false,
+  muted = false,
+  className,
+}) {
   return (
-    <Styled className={muted ? "muted" : ""}>
+    <Styled className={`${muted ? "muted" : ""} ${className}`}>
       {personal ? <LockHashIcon /> : <HashIcon />}
     </Styled>
   );