tsconfig.json

{
  "compilerOptions": {
    "allowJs": true,
    "allowSyntheticDefaultImports": true,
    "allowUnreachableCode": false,
    "baseUrl": "src",
    "downlevelIteration": true,
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "lib": ["es6", "es2015", "es2017", "dom"],
    "module": "esnext",
    "moduleResolution": "Node",
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": false,
    "pretty": true,
    "sourceMap": true,
    "strict": true,
    "jsx": "react",
    "strictNullChecks": true,
    "suppressImplicitAnyIndexErrors": true,
    "resolveJsonModule": true,
    "target": "es2016",
    "types": ["jest", "node"],
    "plugins": [
      {
        "name": "typescript-styled-plugin",
        "tags": ["styled", "css", "createGlobalStyle"]
      }
    ]
  },
  "include": ["./src/", "./types"]
}