fixed colors for darkTheme

lib/views/detail/pages/detail_desktop_page.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:tm_app/core/constants/assets.dart';
 import 'package:tm_app/core/constants/strings.dart';
+import 'package:tm_app/core/theme/colors.dart';
 import 'package:tm_app/core/utils/size_config.dart';
 import 'package:tm_app/views/detail/widgets/tender_detail_action.dart';
 import 'package:tm_app/views/detail/widgets/tender_detail_card.dart';
@@ -13,7 +14,7 @@ class TenderDetailDesktopPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      backgroundColor: Colors.white,
+      backgroundColor: AppColors.backgroundColor,
       appBar: _buildAppBar(context),
       body: SingleChildScrollView(
         child: Padding(
@@ -24,7 +25,7 @@ class TenderDetailDesktopPage extends StatelessWidget {
               child: Column(
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
-                  TenderDetailHeader(isBig: true,),
+                  TenderDetailHeader(isBig: true),
                   SizedBox(height: 24.0.h()),
                   const TenderDetailCard(),
                   SizedBox(height: 24.0.h()),
@@ -42,7 +43,7 @@ class TenderDetailDesktopPage extends StatelessWidget {
     return PreferredSize(
       preferredSize: const Size.fromHeight(60),
       child: AppBar(
-        backgroundColor: Colors.white,
+        backgroundColor: AppColors.backgroundColor,
         elevation: 0,
         titleSpacing: 0,
         leading: IconButton(
@@ -56,7 +57,7 @@ class TenderDetailDesktopPage extends StatelessWidget {
         title: Text(
           AppStrings.tenderDetailTitle,
           style: TextStyle(
-            color: Colors.black,
+            color: AppColors.grey70,
             fontWeight: FontWeight.w600,
             fontSize: 20.0.sp(),
           ),