app/tsconfig.json

{
  "compilerOptions": {
    "target": "esnext",
    "module": "esnext",
    "moduleResolution": "node",
    "noEmitOnError": true,
    "lib": ["esnext", "dom"],
    "strict": true,
    "esModuleInterop": false,
    "allowSyntheticDefaultImports": true,
    "experimentalDecorators": true,
    "importHelpers": true,
    "sourceMap": true,
    "inlineSources": true,
    "incremental": true
  }
}