feat: manual check dyn

Signed-off-by: bggRGjQaUbCoE <githubaccount56556@proton.me>

lib/utils/accounts/account_manager/account_mgr.dart

@@ -123,6 +123,11 @@ class AccountManager extends Interceptor {
       }
       return handler.next(options);
     } else {
+      if (account is AnonymousAccount) {
+        options.headers[HttpHeaders.cookieHeader] = '';
+        handler.next(options);
+        return;
+      }
       account.cookieJar.loadForRequest(options.uri).then((cookies) {
         final previousCookies =
             options.headers[HttpHeaders.cookieHeader] as String?;