🚧 Upgrade to .net 8

[JackDevAU]

• Updates all Projects to net8.0
• Fixes .sln
• Updates Actions build.yml and release.yml
• Moves Azure Function to Isolated model as in-process is being deprecated soonTM
• Renames AuthCMS stuffs
  • AuthenticateNetlify -> AuthenticateCMS
  • NetlifyCallback -> CMSCallback
• Adds 2 new Azure Functions + New ENV Var GitHub:Token
  • UpdateLatestRules - Endpoint used on build to update Latest Rules list
  • GetLatestRules - Will be used by any third party (Widget) to get the latest rules