add 500 error email middleware

[thevinitgupta]

Describe your changes

Added a middleware to send email to send email to admin in case of 500 server error

Screenshots - If Any (Optional)

Issue ticket number and link - If Any

215

Checklist before requesting a review

• [x] I have performed a self-review of my code.

• [x] Followed the repository's Contributing Guidelines.

• [x] I ran the app and tested it locally to verify that it works as expected.

• [x] I have starred the repository.

Additional Information (Optional)

The following details for the nodemailer configuration needs to be updated with admin details :

[Gauravdarkslayer]

@devarshishimpi , should we place mail functionality to a separate file(helper.js) to avoid code duplication ? If yes, should this task be covered in this issue or by creating a separate issue?

[devarshishimpi]

@devarshishimpi , should we place mail functionality to a separate file(helper.js) to avoid code duplication ? If yes, should this task be covered in this issue or by creating a separate issue?

I think the same file works

[Gauravdarkslayer]

Alright then! Everything else is looks good for me .