[Kickoff] Check for searchPage directly rather than root.state

BUG: 431894

FIXED-IN: 5.21


(cherry picked from commit 62503e21)

applets/kickoff/package/contents/ui/FullRepresentation.qml

@@ -906,7 +906,7 @@ Item {
         }
     }
     onCurrentContentViewChanged: {
-        if (keyboardNavigation.state == "RightColumn" && root.state != "search") {
+        if (keyboardNavigation.state == "RightColumn" && root.currentContentView != searchPage.item) {
             root.currentContentView.forceActiveFocus()
         }
     }