http-status and helmet types are missing

[ornakash]

Describe the bug
When installing the project, the http-status and helmet types are missing.

To Reproduce
Steps to reproduce the behavior:

1. Clone the project
2. Go to app.ts file
3. See types errors

Expected behavior
No type errors should be shown

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS] - Windows
• Browser [e.g. chrome, safari] - No browser needed, but vscode
• Version [e.g. 22] - No browser needed, but vscode

Smartphone (please complete the following information):

• Device: [e.g. iPhone6] - No browser needed, but vscode
• OS: [e.g. iOS8.1] - No browser needed, but vscode
• Browser [e.g. stock browser, safari] - No browser needed, but vscode
• Version [e.g. 22] - No browser needed, but vscode

Additional context
This PR should fix this: #53