editor style css import block library

vue-theme/editor-style.css

@@ -1,3 +1,5 @@
+@import url('https://c0.wp.com/c/6.0/wp-includes/css/dist/block-library/style.css')
+
 /* space above title */
 .edit-post-visual-editor__post-title-wrapper {
     margin-top: 1em;