no isseu with the signup, but wrote and endpoints to get all users

[TabotCharlesBessong]

Description

• The signup was not working becasue of some validation issues
• Now we have a new function to help us get all users in the system [Provide a brief description of the changes made in this pull request.]

Related Issue(s)

63

[Closes #[issue_number]] (if applicable)

Proposed Changes

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Checklist

• [ ] I have tested these changes locally.
• [ ] I have added necessary documentation or updated existing documentation (if applicable).
• [ ] I have followed the project's coding style and best practices.
• [ ] I have added/updated tests to ensure the changes are working as expected.
• [ ] I have reviewed the changes and ensured there are no typos or syntax errors.

Screenshots (if applicable)

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Additional Information (optional)

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