Dashboard component
This component is responsible for rendering the dashboard based on the user's role.
Depending on the selected role, it renders different components for Admin, Instructor, Student, and Developer.
It includes a header with user information and a role selection dropdown.
Dashboard component This component is responsible for rendering the dashboard based on the user's role. Depending on the selected role, it renders different components for Admin, Instructor, Student, and Developer. It includes a header with user information and a role selection dropdown.