Request: Add typescript support #406

I'm working on an addition to insights-web (PR) that requires an upgrade to Chart.js 4. Chart.js 4 added typescript .d.ts definitions for various exported types. This breaks the GitHub eslint rules because the linter isn't able to resolve the imported types, despite everything compiling correctly. I was able to fix the linting by adding and configuring eslint-import-resolver-typescript to the project. I wanted to submit this issue here though because this seems like a better addition to estlint-plugin-github, that way we have org-wide TS linting support. There's also an alternative eslint-plugin-i package that claims to be faster than eslint-plugin-import.