added string for every screen and removed from app strings

lib/views/shared/base_button.dart

@@ -1,8 +1,8 @@
 import 'package:flutter/material.dart';
 
-import '../../core/constants/strings.dart';
 import '../../core/theme/colors.dart';
 import '../../core/utils/size_config.dart';
+import '../login/strings/login_strings.dart';
 
 class BaseButton extends StatelessWidget {
   final bool isEnabled;
@@ -73,7 +73,7 @@ class BaseButton extends StatelessWidget {
               ),
             ),
             child: Text(
-              text ?? AppStrings.loginButton,
+              text ?? LoginStrings.loginButton,
               style: TextStyle(
                 fontSize: 16.0.sp(),
                 fontWeight: FontWeight.bold,