* Fix incorrect requires of the ./config module
It's an ES6 module, so we need to use the `default` field, or we'll get the
module itself instead.
* Fix ESLint errors in cvat-core/src/server-proxy.ts
Specifically:
* `padded-blocks`
* `@typescript-eslint/no-var-requires`
* `@typescript-eslint/return-await`
* typescripted some files
* typescripted cloud storage
* reverted api-implementation, fixed minor errors
* updated changelog
* fixed jest test
* updated file: to link:
Co-authored-by: Boris Sekachev <boris.sekachev@yandex.ru>