Hotfix: fix cashier broken image (#4189)

Author: Ali(Ako) Hosseini

packages/core/build/config.js

@@ -37,8 +37,8 @@ const copyConfig = base => {
             to: 'cashier/css',
         },
         {
-            from: path.resolve(__dirname, '../node_modules/@deriv/cashier/dist/cashier/public/'),
-            to: 'public',
+            from: path.resolve(__dirname, '../node_modules/@deriv/cashier/dist/cashier/public'),
+            to: 'cashier/public',
             transformPath(context) {
                 return context.split('node_modules/@deriv/cashier/dist/')[1];
             },