Refactor profile data handling and update UI components

- Changed references from companyProfileData to profileData across multiple profile page views for consistency.
- Updated UI elements to display user-specific information such as username, email, role, department, and position.
- Modified the profile screen to fetch user profile data instead of company profile data.
- Added new string constants for user-related fields in ProfileStrings.

lib/views/profile/pages/profile_screen.dart

@@ -28,7 +28,8 @@ class _ProfileScreenState extends State<ProfileScreen> {
     _tabService.addListener(_onTabChanged);
 
     WidgetsBinding.instance.addPostFrameCallback((_) {
-      _viewModel.getCompanyProfile();
+      // _viewModel.getCompanyProfile();
+      _viewModel.getProfile();
     });
   }
 
@@ -41,7 +42,7 @@ class _ProfileScreenState extends State<ProfileScreen> {
   void _onTabChanged() {
     // Tab index 2 is Profile
     if (_tabService.currentTabIndex == 2 && mounted) {
-      _viewModel.getCompanyProfile();
+      _viewModel.getProfile();
     }
   }