Wait for modal focus restoration in file shortcut test

tools/chatgui/tests/test_member_files_browser.cpp

@@ -121,10 +121,12 @@ private slots:
             auto previous = captured.message.request_id;
             answerDialog(QMessageBox::No); QTest::keyClick(tree, Qt::Key_Delete);
             QCOMPARE(captured.message.request_id, previous);
+            QTRY_VERIFY(browser.isActiveWindow()); QTRY_VERIFY(tree->hasFocus());
             answerDialog(QMessageBox::Yes); QTest::keyClick(tree, Qt::Key_Delete);
             QCOMPARE(captured.message.command, uint8_t(MF_REMOVE_PATH)); QCOMPARE(captured.message.owner, 22ULL);
             QCOMPARE(QString::fromUtf8(captured.message.path), QString("documents/nested/remote.txt"));
             QCOMPARE(QByteArray((const char*)captured.message.version, 16), QByteArray(16, '\7'));
+            QTRY_VERIFY(browser.isActiveWindow());
             location->setFocus(); location->setText("abc"); location->setCursorPosition(1);
             previous = captured.message.request_id;
             QTest::keyClick(location, Qt::Key_Delete); QCOMPARE(location->text(), QString("ac"));