Fix messages in Desktop components.

Change-Id: Id1b00022ae63c9fc1822ddb5c288b202b2b3cc5b
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

src/plugins/qmldesigner/componentsplugin/QtDesktop/TextAreaSpecifics.qml

@@ -170,7 +170,7 @@ QWidget {
                     layout: HorizontalLayout {
                         Label {
                             text: qsTr("Focus on press")
-                            toolTip: qsTr("Determines whether the check box gets focus if pressed.")
+                            toolTip: qsTr("Determines whether the text area gets focus if pressed.")
                         }
                         CheckBox {
                             text: backendValues.activeFocusOnPress.value

src/plugins/qmldesigner/componentsplugin/QtDesktop/TextFieldSpecifics.qml

@@ -46,7 +46,7 @@ QWidget {
                     layout: HorizontalLayout {
                         Label {
                             text:  qsTr("Text")
-                            toolTip:  qsTr("The text shown on the button")
+                            toolTip:  qsTr("The text shown on the text field")
                         }
                         LineEdit {
                             backendValue: backendValues.text