yuzu/configuration/configure_web: Use an ellipsis with 'Verifying' text

It's a common UI pattern to use an ellipsis to indicate an ongoing
action, rather than just specifying the word by itself.

src/yuzu/configuration/configure_web.cpp

@@ -89,7 +89,7 @@ void ConfigureWeb::OnLoginChanged() {
 
 void ConfigureWeb::VerifyLogin() {
     ui->button_verify_login->setDisabled(true);
-    ui->button_verify_login->setText(tr("Verifying"));
+    ui->button_verify_login->setText(tr("Verifying..."));
     verify_watcher.setFuture(
         QtConcurrent::run([this, username = ui->edit_username->text().toStdString(),
                            token = ui->edit_token->text().toStdString()]() {