kcm: make revert message wrap

This was the intention, but the wrap mode enum was being called from the
wrong namespace, so it didn't work.

BUG: 445341
FIXED-IN: 5.23.4
(cherry picked from commit fc02fb29)

kcm/package/contents/ui/main.qml

@@ -110,7 +110,7 @@ KCM.SimpleKCM {
                 text: i18np("Will revert to previous configuration in %1 second.",
                             "Will revert to previous configuration in %1 seconds.",
                             revertCountdown);
-                wrapMode: Qt.WordWrap
+                wrapMode: Text.WordWrap
             }
             footer: RowLayout {
                 Controls.Button {