pool drobných návrhů

* [x] yarn frozen instalace
* [ ] https://github.com/vintasoftware/django-react-boilerplate
* [x] audit
* [x] osetrit contexty
* [X] wrapper komponenty - neni treba {children}
* [ ] pouzit classNames
* [ ] css delat jinak
* [x] husky precommit
* [ ] https://medium.com/@rossbulat/advanced-typescript-by-example-api-service-manager-7ea591f5eba8
* ~[ ] react FC typy~