fixed laoding button

lib/views/detail/widgets/tender_detail_action.dart

@@ -49,13 +49,18 @@ class TenderDetailActions extends StatelessWidget {
             Consumer<TenderDetailViewModel>(
               builder: (context, viewModel, child) {
                 return viewModel.isSubmitApprovalLoading
-                    ? BaseButton(
-                      isEnabled: true,
-                      text: AppStrings.tenderSubmitButton,
-                      backgroundColor: AppColors.primary30,
-                      textColor: AppColors.mainBlue,
-                      isLoading: true,
-                      onPressed: () {},
+                    ? Container(
+                      height: 56.0.h(),
+                      width: double.infinity,
+                      decoration: BoxDecoration(
+                        color: AppColors.primary30,
+                        borderRadius: BorderRadius.circular(100.0),
+                      ),
+                      child: Center(
+                        child: CircularProgressIndicator(
+                          color: AppColors.mainBlue,
+                        ),
+                      ),
                     )
                     : BaseButton(
                       isEnabled: true,

lib/views/shared/base_button.dart

@@ -39,7 +39,7 @@ class BaseButton extends StatelessWidget {
           width: double.infinity,
           height: 55.0.h(),
           decoration: BoxDecoration(
-            color: AppColors.backgroundColor,
+            color: AppColors.mainBlue,
             borderRadius: BorderRadius.circular(28.0.w()),
           ),
           child: Center(