Update Firefox version in user agent manager

BUG: 415467
FIXED-IN: 22.08.02

Signed-off-by: Juraj Oravec <jurajoravec@mailo.com>

src/lib/preferences/useragentdialog.cpp

@@ -52,7 +52,7 @@ UserAgentDialog::UserAgentDialog(QWidget* parent)
     m_knownUserAgents << QString("Opera/9.80 (%1) Presto/2.12.388 Version/12.16").arg(os)
                       << QString("Mozilla/5.0 (%1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/%2 Safari/537.36").arg(os, chromeVersion)
                       << QString("Mozilla/5.0 (%1) AppleWebKit/602.3.12 (KHTML, like Gecko) Version/10.0.2 Safari/602.3.12").arg(os)
-                      << QString("Mozilla/5.0 (%1; rv:57.0) Gecko/20100101 Firefox/57.0").arg(os);
+                      << QString("Mozilla/5.0 (%1; rv:102.0) Gecko/20100101 Firefox/102.0").arg(os);
 
     ui->globalComboBox->addItems(m_knownUserAgents);