Qt: Update German translation and fix cdromSeekSpeedup (#2161)

* Update duckstation-qt_de.ts

* Update duckstation-qt_de.ts

* Update consolesettingswidget.cpp

* Update duckstation-qt_de.ts

* Update duckstation-qt_de.ts

src/duckstation-qt/consolesettingswidget.cpp

@@ -69,7 +69,7 @@ ConsoleSettingsWidget::ConsoleSettingsWidget(QtHostInterface* host_interface, QW
     tr("Speeds up CD-ROM reads by the specified factor. Only applies to double-speed reads, and is ignored when audio "
        "is playing. May improve loading speeds in some games, at the cost of breaking others."));
   dialog->registerWidgetHelp(
-    m_ui.cdromReadSpeedup, tr("CDROM Seek Speedup"), tr("None (Normal Speed)"),
+    m_ui.cdromSeekSpeedup, tr("CDROM Seek Speedup"), tr("None (Normal Speed)"),
     tr("Reduces the simulated time for the CD-ROM sled to move to different areas of the disc. Can improve loading "
        "times, but crash games which do not expect the CD-ROM to operate faster."));
   dialog->registerWidgetHelp(