Add TypeScript linting support

Created by: Timer

We should lint TypeScript files and try to approximate to match our ESLint configuration as close as possible.

TSLint rules we want:

• no-namespace: enforce usage of ES Modules / disallow deprecated behavior
• no-duplicate-super: prevent runtime error
• no-duplicate-switch-case
• no-duplicate-variable: prevent redeclare of var
• no-invalid-template-strings
• no-invalid-this
• triple-equals
• use-isnan
• react hooks plugin
• match eslint config closely
• restrictedGlobals

maybe:

• no-switch-case-fall-through
• no-implicit-dependencies