Refactor navigation structure and update asset references

- Swapped routes for Profile and Notification branches in the app's navigation structure.
- Updated the current index for navigation items in TabletNavigationWidget and related pages to reflect the new routing.
- Added a new logo SVG asset to the asset manager for branding consistency.
- Adjusted the pubspec.lock file to downgrade several package versions for compatibility.

lib/core/routes/app_shell/mobile_shell_page.dart

@@ -50,19 +50,19 @@ class MobileShellPage extends StatelessWidget {
               iconPath: AssetsManager.tenders,
               activeIconPath: AssetsManager.tendersActive,
             ),
-            _bottomNavigationItem(
-              context: context,
-              text: TendersStrings.contracts,
-              isActive: navigationShell.currentIndex == 4,
-              onTap: () => onTap(4),
-              iconPath: AssetsManager.contracts,
-              activeIconPath: AssetsManager.contracts,
-            ),
+            // _bottomNavigationItem(
+            //   context: context,
+            //   text: TendersStrings.contracts,
+            //   isActive: navigationShell.currentIndex == 4,
+            //   onTap: () => onTap(4),
+            //   iconPath: AssetsManager.contracts,
+            //   activeIconPath: AssetsManager.contracts,
+            // ),
             _bottomNavigationItem(
               context: context,
               text: TendersStrings.notifications,
-              isActive: navigationShell.currentIndex == 3,
-              onTap: () => onTap(3),
+              isActive: navigationShell.currentIndex == 2,
+              onTap: () => onTap(2),
               iconPath: AssetsManager.notify,
               activeIconPath: AssetsManager.notifyActive,
               showBadge:
@@ -73,8 +73,8 @@ class MobileShellPage extends StatelessWidget {
             _bottomNavigationItem(
               context: context,
               text: ProfileStrings.profileTitle,
-              isActive: navigationShell.currentIndex == 2,
-              onTap: () => onTap(2),
+              isActive: navigationShell.currentIndex == 3,
+              onTap: () => onTap(3),
               iconPath: AssetsManager.profile,
               activeIconPath: AssetsManager.profileActive,
             ),