qml: fix a few texts that should wrap

electrum/gui/qml/components/wizard/WCCosignerKeystore.qml

@@ -65,7 +65,7 @@ WizardComponent {
         }
 
         Rectangle {
-            Layout.preferredWidth: parent.width
+            Layout.fillWidth: true
             Layout.preferredHeight: 1
             Layout.topMargin: constants.paddingLarge
             Layout.bottomMargin: constants.paddingLarge
@@ -74,7 +74,9 @@ WizardComponent {
         }
 
         Label {
+            Layout.fillWidth: true
             text: qsTr('Add cosigner #%1 of %2 to your multi-sig wallet').arg(cosigner).arg(participants)
+            wrapMode: Text.Wrap
         }
         RadioButton {
             ButtonGroup.group: keystoregroup

electrum/gui/qml/components/wizard/WCHaveMasterKey.qml

@@ -89,7 +89,7 @@ WizardComponent {
         }
 
         Rectangle {
-            Layout.preferredWidth: parent.width
+            Layout.fillWidth: true
             Layout.preferredHeight: 1
             Layout.topMargin: constants.paddingLarge
             Layout.bottomMargin: constants.paddingLarge
@@ -103,9 +103,11 @@ WizardComponent {
         }
 
         Label {
+            Layout.fillWidth: true
             text: cosigner
                     ? qsTr('Enter cosigner master public key')
                     : qsTr('Create keystore from a master key')
+            wrapMode: Text.Wrap
         }
 
         RowLayout {