ADD: New route for profile update and added a new feature to change avatars

[shubhagarwal1]

Feature: Integrated avatar selection and update functionality into the user profile.

Changes:

• Created AvatarSelectionModal component to allow users to select a new avatar image.
• Added a route and service for updating the user's profile image via API.
• Implemented handleUpdateProfileImage function to handle the avatar change, including success and error states.
• Managed modal state with isOpen and onClose handlers to provide a seamless user experience.
• Added loading and disabled state to prevent multiple submissions while the image is being updated.
• Passed currentAvatar as a prop to display the user's existing profile image.

Improvements:

• Provides a user-friendly way to update profile images.
• Ensures error handling and smooth UI interactions during image updates.

[mehul-m-prajapati]

@AshuKr22 : Is this same as #185?

[shubhagarwal1]

@mehul-m-prajapati no this features help user to select diffrent avatar