vscode user settings

If using VSCODE, save following in user settings.

{
    "files.autoSave": "afterDelay",
    "typescript.tsdk": "node_modules/typescript/lib",
    "javascript.implicitProjectConfig.experimentalDecorators": true
}

If typescript intellisense fails, check the following workaround.

https://github.com/Microsoft/vscode/issues/1342