* Distinguish request and response data types
* Fix Axios headers type
`axios.headers` is not of the same type as `request.headers`, so a new type
`AxiosDefaults` was introduced
* Replace grunt-ts with dtslint
This asserts that the type definitions are valid in the specified TypeScript
version and above. This is the same tool that is used by DefinitelyTyped.
* Remove grunt-ts
* Restore typescript dependency
* Fix missing semicolons
Co-authored-by: Claas Augner <github@caugner.de>
Co-authored-by: Jay <jasonsaayman@gmail.com>
