Deprecating `/users/self` GET route

[somu-code]

Issue Description

Deprecate the/users/self API from website-backend. And adding a new route that will serve the purpose of /users/self.
Old issue link

Expected Behavior

The user's data should return from an API that has some meaningful name.

Current Behavior

Currently, /users/self GET route returns all the details of the currently authenticated user.

User Story

• As a user, I want to access my details and tasks details without relying on a generic endpoint, ensuring a more personalized and secure experience.

Developer Story

• As a developer, I want to ensure the API remains efficient and easy to maintain as the user base grows.

Requirements

• Delete /users/self endpoint.
• We will be needing a new route that will server the purpose of /users/self.
• Either we can use /users resource with a query param(id), something like /users?id=some_id, or can create new endpoints like /users/me or /users/profile.

Screenshots

/users/self

/users?id=66wkaNSpTskaVTmSSRPQ

Reproducibility

• This issue is reproducible
• This issue is not reproducible

Steps to Reproduce

1. Make a GET request to /users/self and /users?id=some_id endpoints.

Severity/Priority

• Critical
• High
• Medium
• Low

Additional Information

Checklist

• I have read and followed the project's code of conduct.
• I have searched for similar issues before creating this one.
• I have provided all the necessary information to understand and reproduce the issue.
• I am willing to contribute to the resolution of this issue.

[vikasosmium]

Hello @vinit717
Could you please close this issue? I've completed the tasks listed below, and they have been merged.

New Route - #2201
Header Warning - #2221
API Contract - RealDevSquad/website-api-contracts#191