added notification some design and added item to navbar

lib/views/notification/widgets/notification_card.dart

@@ -18,16 +18,34 @@ class NotificationCard extends StatelessWidget {
       margin: EdgeInsets.symmetric(horizontal: 24.0.w()),
       padding: EdgeInsets.symmetric(horizontal: 16.0.w(), vertical: 16.0.h()),
       decoration: BoxDecoration(
-        color: AppColors.mainBlue.withValues(alpha: 0.03),
+        color:
+            notification.title == 'Tender Submitted'
+                ? AppColors.orange10
+                : notification.title == 'New Tender Invitation'
+                ? AppColors.mainBlue.withValues(alpha: 0.03)
+                : AppColors.green0,
         borderRadius: BorderRadius.circular(4),
-        border: Border.all(color: AppColors.mainBlue.withValues(alpha: 0.15)),
+        border: Border.all(
+          color:
+              notification.title == 'Tender Submitted'
+                  ? AppColors.warningColor
+                  : notification.title == 'New Tender Invitation'
+                  ? AppColors.mainBlue.withValues(alpha: 0.15)
+                  : AppColors.green20,
+        ),
       ),
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           Row(
             children: [
-              SvgPicture.asset(AssetsManager.notification),
+              SvgPicture.asset(
+                notification.title == 'Tender Submitted'
+                    ? AssetsManager.danger
+                    : notification.title == 'New Tender Invitation'
+                    ? AssetsManager.notification
+                    : AssetsManager.tickCircle,
+              ),
               SizedBox(width: 8.0.w()),
               Text(
                 notification.title,