refactor codes

lib/core/constants/strings.dart

@@ -37,6 +37,10 @@ class AppStrings {
   //Tenders
   static const String tendersTitle = 'Tenders';
   static const String tenderSeeMore = 'See More';
+  static const String reject = 'Reject';
+  static const String submit = 'Submit';
+  static const String dislike = 'Dislike';
+  static const String like = 'Like';
 
   //profile
   static const String profile = 'Profile';

lib/core/routes/app_shell/mobile_shell_page.dart

@@ -24,7 +24,7 @@ class MobileShellPage extends StatelessWidget {
         height: 72.0.h(),
         decoration: BoxDecoration(
           color: AppColors.grey10,
-          border: Border.fromBorderSide(BorderSide(color: AppColors.grey30)),
+          border: Border(top: BorderSide(color: AppColors.grey30)),
         ),
         child: Row(
           mainAxisAlignment: MainAxisAlignment.spaceAround,