refactor changes

src/main.tsx

@@ -8,8 +8,8 @@
 // order their rules expect to win: the document's typography, then the three block sheets that
 // answer it for a construct with a node view or a decoration of its own, then the page the document
 // sits on and the section drawn under the end of it, the pill that floats over that page and the
-// two menus that hang off it, and last the shell, which is the one sheet that reaches back into
-// the title bar app.css already styled. The palettes come last of all: they override .overlay from
+// three menus that hang off the title bar, and last the shell, which is the one sheet that reaches
+// back into the title bar app.css already styled. The palettes come last of all: they override .overlay from
 // app.css and .key-cap from tree.css, so they have to be able to see both.
 //
 // katex.min.css is not here. src/editor/blocks/math.ts imports it itself so that the bundler
@@ -26,6 +26,8 @@ import "./styles/sheet.css";
 import "./styles/backlinks.css";
 import "./styles/toolbar.css";
 import "./styles/width-menu.css";
+import "./styles/document-setup.css";
+import "./styles/export-preview.css";
 import "./styles/link-picker.css";
 import "./styles/tree.css";
 import "./styles/palette.css";