Better errors for Blazor asset integrity problems

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Is your feature request related to a problem? Please describe the problem.

See the report in https://github.com/dotnet/aspnetcore/issues/64923

The problem was due to a failed integrity check for a changed file after publish. However, the error the user sees is a very non-descriptive `AggregateException_ctor_DefaultMessage`.

### Describe the solution you'd like

The user should see an error explaining the actual reason.

### Additional context

_No response_