removed country flags package and read flags from server and implement svg cahce structure

lib/views/detail/widgets/tender_location_section.dart

@@ -1,4 +1,3 @@
-import 'package:country_flags/country_flags.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:tm_app/core/constants/assets.dart';
@@ -6,6 +5,7 @@ import 'package:tm_app/core/theme/colors.dart';
 import 'package:tm_app/core/utils/size_config.dart';
 
 import '../../../data/services/model/tender_data/tender_data.dart';
+import '../../shared/flag.dart';
 import '../strings/tender_details_strings.dart';
 
 class TenderLocationSection extends StatelessWidget {
@@ -48,14 +48,8 @@ class TenderLocationSection extends StatelessWidget {
                 ),
               ),
               SizedBox(width: 4.0.w()),
-              SizedBox(
-                width: 32.0.w(),
-                height: 21.0.h(),
-                child: CountryFlag.fromCountryCode(
-                  detail.countryCode!,
-                  shape: RoundedRectangle(4),
-                ),
-              ),
+              if (detail.countryCode != null)
+                Flag(countryCode: detail.countryCode!),
             ],
           ),
           SizedBox(height: 8.0.h()),