tsconfig.json

{
  "compilerOptions": {
    "incremental": true,
    "target": "es2015",
    "module": "commonjs",
    "jsx": "preserve",
    "removeComments": true,
    "importHelpers": true,
    "isolatedModules": true,
    "strict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictBindCallApply": true,
    "strictPropertyInitialization": true,
    "noImplicitThis": true,
    "alwaysStrict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "noUncheckedIndexedAccess": true,
    "baseUrl": "./src",
    "paths": {
      "@themes/*": ["themes/*"],
      "@components/*": ["components/*"],
      "@core/*": ["core/*"]
    },
    "typeRoots": ["types"],
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,
    "plugins": [
      {
        "name": "ts-graphql-plugin",
        "schema": "src/generated/gatsby-schema.graphql",
        "tag": "graphql"
      }
    ]
  }
}