Summary

Added a validation check to ensure the user cannot submit an empty form on the signup page.

Changes

• Updated signup.js to include an if condition that checks for empty fields.
• Displayed an error message when the user tries to submit an empty form.

Testing

• Tested locally — validation works as expected.
• No console errors found.

Request

@SupervisorName — please review this when you have a moment. 🙏
Would love your feedback on the validation logic.