Feature/allow user deletion clean

[Eshwar1212-maker]

What kind of change does this PR introduce?

This change enables the user to delete their own account.

This is implemented by deleting the User model in the database, as well as any other models that specifically depend on the UserModel.

Why was this change needed?

This was the original issue: #855 (comment).

Other information:

Yes the maintainer assigned it to me

Checklist:

Put a "X" in the boxes below to indicate you have followed the checklist;

• [X ] I have read the CONTRIBUTING guide.
• [X ] I checked that there were not similar issues or PRs already open for this.
• [X ] This PR fixes just ONE issue (do not include multiple issues or types of change in the same PR) For example, don't try and fix a UI issue and include new dependencies in the same PR.

Screen.Recording.2025-08-04.at.2.25.01.PM.mov

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