move to src folders

wax-prosemirror-components/index.js

-export { default as MainMenuBar } from "./mainMenuBar/MainMenuBar";
+export { default as MainMenuBar } from "./src/mainMenuBar/MainMenuBar";

wax-prosemirror-core/index.js

-export { default as Wax } from "./Wax";
-export { default as createSchema } from "./config/classes/createSchema";
+export { default as Wax } from "./src/Wax";
+export { default as createSchema } from "./src/config/classes/createSchema";

wax-prosemirror-schema/index.js

-export { default as defaultSchema } from "./defaultSchema";
+export { default as defaultSchema } from "./src/defaultSchema";