add round icons

apps/app/src/styles/font-icons.scss

@@ -4,4 +4,5 @@
 @import 'simple-line-icons';
 @import 'material-icons/iconfont/filled';
 @import 'material-icons/iconfont/outlined';
+@import 'material-icons/iconfont/round';
 @import '@icon/themify-icons/themify-icons';

packages/editor/src/main.scss

@@ -4,5 +4,6 @@
 $material-icons-font-path: 'material-icons/iconfont/';
 @import 'material-icons/iconfont/filled';
 @import 'material-icons/iconfont/outlined';
+@import 'material-icons/iconfont/round';
 
 @import '@growi/core/scss/flex-expand';