Make atom-text-editor have “display: block”

static/editor.less

@@ -2,6 +2,10 @@
 @import "octicon-utf-codes";
 @import "octicon-mixins";
 
+atom-text-editor {
+  display: block;
+}
+
 atom-text-editor::shadow {
   .editor, .editor-contents {
     height: 100%;