Refactor OPD Registration Form and Login/Register Form to use React Hook Form

[async-shreyas]

The OPD Registration Form and Login/Register Form currently use conventional state management, which complicates handling multiple fields. Refactoring them to use React Hook Form (RHF) will provide several benefits:

• Improved Validation and Error Handling
• Easier Integration with UI Libraries
• Reduced Boilerplate Code
• Enhanced Performance

Action Items

1. Refactor the OPD Registration Form to use RHF and implement validation.
2. Refactor the Login/Register Form similarly.
3. Test both forms to ensure proper functionality and integration.