sort components into widgets and views

src/widgets/unread-badge.jsx

@@ -0,0 +1,14 @@
+// The counter of unread messages in the topic.
+
+import React from 'react';
+
+export default class UnreadBadge extends React.PureComponent {
+  render() {
+    var showUnreadBadge = null;
+    if (this.props.count > 0) {
+      var count = this.props.count > 9 ? "9+" : this.props.count;
+      showUnreadBadge = <span className="unread">{count}</span>;
+    }
+    return showUnreadBadge;
+  }
+};