feat: add modals for managing interns, creating projects, and tasks

- Implemented AddInternsDialog for inviting and managing interns.
- Created CreateProjectDialog for launching new projects with detailed forms.
- Added CreateTaskDialog for task creation with deadline and submission type options.
- Enhanced Header component with navigation functionality.
- Updated MentorProjectCard to navigate correctly to mentor projects.
- Refactored SidebarMentor for improved navigation and mobile responsiveness.
- Adjusted Internify login logic to streamline user role navigation.
- Added CSS styles for consistent layout and design.
- Introduced mock data for interns to facilitate development and testing.

src/Pages/internify/intern/components/HomeCalendar.tsx

@@ -137,7 +137,7 @@ const HomeCalendar = () => {
                 className={`w-full h-7 flex items-center justify-center text-xs rounded
                   ${isBold(day) ? 'font-bold text-gray-800' : 'text-gray-700'}
                   ${hasDeadline(day) ? 'bg-red-700 text-white' : ''}
-                  hover:bg-gray-100 cursor-pointer transition-colors`}
+                  transition-colors`}
               >
                 {day}
               </span>