Fix unresolved types

[timjam]

Since this package seems to be deployed from the dist folder I moved the types to the "root" being the root of dist. This is because when the package is installed on other projects it seems that TypeScript cannot find the types from the types subfolder. Also added a little note for other users to change their tsconfig module resolution to node. Otherwise the types are not found.

If this gets merged, it might be good idea to create a whole new release, so that the release tags on github align with the release numbers on npm

[TobiTenno]

@bhoriuchi this would be fantastic to have working