feat: Refactor mentor components and implement project management features

- Removed unused imports and interfaces in HomeProjectList component.
- Added ArrowDownNarrowWide icon to ProjectTimeline component for visual enhancement.
- Updated layout imports to reflect new component structure.
- Created BaseProjectsPage for mentor to manage projects with navigation.
- Introduced MentorCertificatePage as a placeholder for future certificate functionality.
- Deleted obsolete HomeMentorPage and replaced it with HomePage for mentor dashboard.
- Added InternsPage and updated MentorInternPage for better intern management.
- Implemented ProjectForumTab and ProjectsInternTab for project details and intern listings.
- Developed TaskTab for task management within projects.
- Created SidebarMentor for navigation in mentor dashboard.
- Enhanced login functionality with user role-based navigation.
- Updated mockData to include task submission counts and certificate data structure.
- Added new assets for certificate representation.

src/Pages/internify/intern/ProjectDetailPage.tsx

@@ -1,8 +1,8 @@
 import { useState } from 'react';
 import { useNavigate, useParams } from 'react-router-dom';
 import { mockProjects } from '../../../lib/mockData';
-import ForumTab from './ProjectForum';
-import ParticipantsTab from './ProjectParticipants';
+import ForumTab from './ForumTab';
+import ParticipantsTab from './ParticipantTab';
 import { ChevronLeft } from 'lucide-react';
 
 // ─── ProjectDetailPage ─────────────────────────────────────────────────────────