Parameters and connection strings should be visible in the dashboard

[davidfowl]

Initially, we hid these because of the hidden parameters added by individual resources (like database resources) and because the dashboard lacked the ability to show hierarchy. We should show these now as they are relevant to configuration and have valuable properties that show up in the dashboard.

It also looks kind of odd that they only show up when values have not been provided or when there's an issue resolving the value.

We need to remove:

https://github.com/dotnet/aspire/blob/00728f0f3cda5868f90b9efd03d43b6ae3366a80/src/Aspire.Hosting/ParameterResourceBuilderExtensions.cs#L166

and

https://github.com/dotnet/aspire/blob/da81496b05712535a784f5cf8218b627e958eef0/src/Aspire.Hosting/ConnectionStringBuilderExtensions.cs#L49

and

https://github.com/dotnet/aspire/blob/da81496b05712535a784f5cf8218b627e958eef0/src/Aspire.Hosting/Orchestrator/ParameterProcessor.cs#L110

cc @eerhardt