Aspire doesn't replace http client Uri with actual address in blazor webassembly standalone app because it don't have appsettings.json

### Describe the bug

i referenced the blazor project to Aspire app host so this is my aspire app host code

```
using AnswerMe.Aspire.AppHost;

var builder = DistributedApplication.CreateBuilder(args);

var identityServerDb=builder.AddPostgres("identityserver", password: builder.CreateStablePassword("AnswerMeDB-password"))
.WithDataVolume()
.WithPgAdmin()
.AddDatabase("IdentityServerDb");

var identityServerApi = builder.AddProject("identityserverapi")
.WithReference(identityServerDb);

var client = builder.AddProject("answermeclient")
.WithReference(identityServerApi);

builder. Build().Run();
```
and this is my blazor code to add HTTP client

builder.Services.AddHttpClient(nameof(HttpClients.IdentityServer),
client => { client.BaseAddress = new("http://identityserverapi"); });

so as you can see in the result it doesn't replace the `http://identityserverapi` with the actual address

and also i found the `builder.Configuration.GetConnectionString("identityserverapi");` doesn't work because we don't have `appsettings.json` in blazor wasm so i think Aspire doesn't work fo the blazor wasm