close down dropdown menus on click + smaller tweaks

src/public/app/widgets/note_actions.js

@@ -114,6 +114,9 @@ export default class NoteActionsWidget extends TabAwareWidget {
 
         this.$unprotectButton = this.$widget.find(".unprotect-button");
         this.$unprotectButton.on('click', () => protectedSessionService.protectNote(this.noteId, false, false));
+
+        this.$widget.on('click', '.dropdown-item',
+            () => this.$widget.find('.dropdown-toggle').dropdown('toggle'));
     }
 
     refreshWithNote(note) {