wallet: Postpone NotifyWalletLoaded() for encrypted wallets

Too early NotifyWalletLoaded() call in CWallet::Create() results the
notification goes before DescriptorScriptPubKeyMans were created and
added to an encrypted wallet.

Co-authored-by: Andrew Chow <achow101-github@achow101.com>

src/wallet/test/wallet_tests.cpp

@@ -54,6 +54,7 @@ static const std::shared_ptr<CWallet> TestLoadWallet(WalletContext& context)
     std::vector<bilingual_str> warnings;
     auto database = MakeWalletDatabase("", options, status, error);
     auto wallet = CWallet::Create(context, "", std::move(database), options.create_flags, error, warnings);
+    NotifyWalletLoaded(context, wallet);
     if (context.chain) {
         wallet->postInitProcess();
     }