2sxc 16.09 for Oqtane 5 / .net 8

Brief release for Oqtane 5 (.net 8) and some minor bugfixes.

It's very similar to 16.07 LTS, but if you want LTS, use that version instead (unless you need Oqtane 5).

Changes / Highlights

1. ✅ Blazor .net 8 / Oqtane 5 support
2. ✅ TypedItem.Picture("Child.Property") path notation
3. ✅ fix js minification of inpage.min.js #3200
4. ✅ Release all apps in the new typed mode
5. ✅ Improve file-upload to prevent files with ".." in the name
6. ✅ Improve DataSource Caching and cache-flushing
7. ✅ Add new (beta ⌛) feature for copyright management (Patron AdvancedCMS) to add copyright info to each image
8. ✅ Extend SQL Database to store SysSettings and Guid on Attributes for future features
9. 🐞 Fix minor issue with old .Code for older Razor base classes
10. 🐞 Fix minor issue with edit-dialog in scenarios with multiple portal aliases
11. 🐞 Fix minor issue with IMetadata.Children(...) / ...Child(...) #3217
12. 🐞 Fix DataSource LanguageModeler #3219
13. 🐞 Fix DataSource TreeMapper
14. 🩸 Oqtane: Adam backend didn't always serialize all properties #3206