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/HomeHeader.tsx

@@ -1,9 +1,9 @@
 const HomeHeader = () => {
-    const name = "Karina";
+  const name = "Karina";
   return (
     <div>
       <div className="flex items-start px-0 mb-5">
-        <h1 className="text-2xl font-bold text-gray-900">Hi, {name}!</h1>
+        <h1 className="page-title">Hi, {name}!</h1>
       </div>
     </div>
   )