Migrate from deprecated tslint to typescript-eslint

[jan-vcapgemini]

As a TypeScript user, I want to use my tslint rules so that my TypeScript files get linted correctly.
tslint is deprecated and needs to be migrated to typescript-eslint.

Comment

Palantir, the backers behind TSLint announced in 2019 that they would be deprecating TSLint in favor of supporting typescript-eslint in order to benefit the community. You can read more about that here: https://medium.com/palantir/tslint-in-2019-1a144c2317a9

Check out: https://github.com/typescript-eslint/tslint-to-eslint-config for a proper migration of the current tslint.json.