Fix: add missing exports

src/file/index.ts

@@ -9,3 +9,5 @@ export * from "./document";
 export * from "./styles";
 export * from "./table-of-contents";
 export * from "./xml-components";
+export * from "./header-wrapper";
+export * from "./footer-wrapper";

src/file/styles/index.ts

@@ -1 +1,3 @@
 export * from "./styles";
+export * from "./style/character-style";
+export * from "./style/paragraph-style";