Better linting setup

[Hilzu]

• Strict preset of typescript-eslint
• Typechecking enabled preset of typescript-eslint
• Node plugin
• Import plugin
• Sort imports
• Remove unused imports
• Use node: prefix with built-in modules

[Hilzu]

For import plugin and import sorting it might make sense to use https://github.com/un-ts/eslint-plugin-import-x instead of the original one. It seems pretty contentious due to the maintainer. It also includes lots of unnecessary dependencies.