Photino Native Dialogs

There has been an intermittent issue around dialogs sometimes causing the app to hang, which seemed to come back to the library we were using to handle OS file dialogs. As part of updating to .net 8 we have also updated to the latest Photino.Blazor library which now has its own native way for handling OS file dialogs.

This required a bit of hoop jumping but I think most of the main work has been done there now so that work has been merged in which will hopefully stop the issue entirely.

Minor Fixes

There was an issue around Portal > Button Element Editor where it would not be correctly reflecting the button type changes, this has been fixed now as well as a label which was incorrect in the sound handling tasks.