Try to raise window when URI is pasted

src/mainwindow.cpp

@@ -876,6 +876,7 @@ void MainWindow::payZcashURI(QString uri) {
 
     // And switch to the send tab.
     ui->tabWidget->setCurrentIndex(1);
+    raise();
 
     // And click the send button if the amount is > 0, to validate everything. If everything is OK, it will show the confirm box
     // else, show the error message;

src/scripts/zec-qt-wallet.wxs

@@ -65,9 +65,7 @@
                 <File Source="zcash-cli.exe" />
                 <File Source="README.md" />
 
-                <RegistryKey Root="HKCR"
-                        Key="zcash"
-                        Action="createAndRemoveOnUninstall">
+                <RegistryKey Root="HKCR" Key="zcash">
                     <RegistryValue Type="string" Name="URL Protocol" Value=""/>
                     <RegistryValue Type="string" Value="URL:zcash URI protocol"/>
                     <RegistryKey Key="DefaultIcon">