FIX: some button classes

app/assets/javascripts/discourse/components/pinned-button.js.es6

@@ -6,6 +6,8 @@ export default DropdownButton.extend({
   descriptionKey: 'help',
   classNames: ['pinned-options'],
   title: '',
+  buttonExtraClasses: 'btn-icon-text',
+
   longDescription: function(){
     const topic = this.get('topic');
     const globally = topic.get('pinned_globally') ? '_globally' : '';

app/assets/javascripts/discourse/widgets/topic-notifications-button.js.es6

@@ -43,7 +43,7 @@ export default createWidget('topic-notifications-button', {
     const details = buttonDetails(level);
 
     const button = {
-      className: `btn toggle-notification-options`,
+      className: `toggle-notification-options`,
       label: null,
       icon: details.icon,
       action: 'toggleDropdown',