qml: add wallet button icon

electrum/gui/qml/components/AddressDetails.qml

@@ -157,7 +157,7 @@ Pane {
                             }
                             ToolButton {
                                 icon.source: '../../icons/share.png'
-                                icon.color: 'transparent'
+                                enabled: modelData
                                 onClicked: {
                                     var dialog = app.genericShareDialog.createObject(root,
                                         { title: qsTr('Public key'), text: modelData }

electrum/gui/qml/components/Wallets.qml

@@ -113,6 +113,7 @@ Pane {
         FlatButton {
             Layout.fillWidth: true
             text: 'Create Wallet'
+            icon.source: '../../icons/add.png'
             onClicked: rootItem.createWallet()
         }
     }