Trying to fix the Windows appID of the installer, so it matches previous releases

Author: jonoomph

installer/windows-installer.iss

@@ -24,7 +24,7 @@
 ; NOTE: The value of AppId uniquely identifies this application.
 ; Do not use the same AppId value in installers for other applications.
 ; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
-AppId={code:GetAppId|4BB0DCDC-BC24-49EC-8937-72956C33A470}
+AppId={{code:GetAppId|4BB0DCDC-BC24-49EC-8937-72956C33A470}
 AppName=OpenShot Video Editor
 AppVersion={#VERSION}
 VersionInfoVersion={#VERSION}