Aspire: Consider moving back-office angular application

[gterdem]

This will cause hosting the angular app in .Net application as BFF pattern. It can be beneficial.

Some usefull links:

• https://learn.microsoft.com/en-us/samples/dotnet/aspire-samples/aspire-angular-react-vue/
• https://timdeschryver.dev/blog/how-to-include-an-angular-project-within-net-aspire#adding-an-angular-project-to-net-aspire-application-host