- `[major] re-organize exports and ES modules`
- `[major] move to node 12 as minimum`
- `[major] move to @xarc/run`
- `[major] remove old css module hooks`
- `[major] remove loadable and replace with subapp v2`
- `[major] default to react 17`

Minor changes and fixes:

- fix types for xarc/react
- subappv1: pass default namespace to getbundleassets inside cdn-map.js