DRM: check for valid account, not just any account

README.md

@@ -1,5 +1,8 @@
 # <img src="./program_info/org.unmojang.FjordLauncher.svg" alt="Fjord Launcher logo" width="96"/> Fjord Launcher
 
+> [!WARNING]
+> Fjord Launcher is currently under development and is not yet in an easy-to-use state.
+
 Fjord Launcher is a **fork** of Prism Launcher. It is **not** endorsed by or affiliated with Prism Launcher.
 
 ## Advantages of this fork over Prism Launcher

launcher/ui/pages/global/AccountListPage.cpp

@@ -152,7 +152,7 @@ void AccountListPage::on_actionAddMojang_triggered()
 
 void AccountListPage::on_actionAddAuthlibInjector_triggered()
 {
-    if (m_accounts->count() == 0) {
+    if (!m_accounts->anyAccountIsValid()) {
         QMessageBox::warning(this, tr("Error"),
                              tr("You must add a Microsoft or Mojang account that owns Minecraft before you can add an account on a custom "
                                 "authentication server."
@@ -192,7 +192,7 @@ void AccountListPage::on_actionAddMicrosoft_triggered()
 
 void AccountListPage::on_actionAddOffline_triggered()
 {
-    if (m_accounts->count() == 0) {
+    if (!m_accounts->anyAccountIsValid()) {
         QMessageBox::warning(this, tr("Error"),
                              tr("You must add a Microsoft or Mojang account that owns Minecraft before you can add an offline account."
                                 "<br><br>"