Don't show login page when starting NeoChat

This was caused by us calling initiated to early. Only do it when no
accounts exists or that at least one account fails to login.

Fix #248

qml/main.qml

@@ -251,6 +251,9 @@ Kirigami.ApplicationWindow {
         target: Controller
 
         function onInitiated() {
+            if (roomManager.hasOpenRoom) {
+                return;
+            }
             if (Controller.accountCount === 0) {
                 pageStack.replace("qrc:/imports/NeoChat/Page/LoginPage.qml", {});
             } else {

src/controller.cpp

@@ -282,6 +282,7 @@ void Controller::invokeLogin()
                     Q_EMIT errorOccured(i18n("Login Failed"), error);
                     logout(connection, true);
                 }
+                Q_EMIT initiated();
             });
             connect(connection, &Connection::networkError, this, [=](const QString &error, const QString &, int, int) {
                 Q_EMIT errorOccured("Network Error", error);
@@ -289,7 +290,7 @@ void Controller::invokeLogin()
             connection->connectWithToken(account.userId(), accessToken, account.deviceId());
         }
     }
-    if (m_connections.isEmpty()) {
+    if (accounts.isEmpty()) {
         Q_EMIT initiated();
     }
 }