Update form ux

[Akshit1311]

Instructions:

• Instead of showing all fields at once (like 8 input fields in the Skills tab) show either 1 or 2 and add buttons to add a field.
• Add a delete icon on each field to delete the field if added by mistake.
• Accept input for repository URLs that users want to show in their portfolio.
• Make GitHub access token optional and ask it only if the user enters any repository URL that is private.