[New article]: Use `EndpointProperty.HostAndPort` in samples

[afscrome]

Proposed topic or title

NA - updates to existing articles

Location in table of contents.

N/A

Reason for the article

dotnet/aspire#7629 introduces an EndpointProperty.HostAndPort to 9.2 that can simplify scenarios where you previously needed to concatenate Host and Port seperately - {foo.Property(EndpointProperty.Host)}:{foo.Property(EndpointProperty.Port)}

The docs currently have a few places that could use this simplification

docs-aspire/docs/extensibility/snippets/MailDevResource/MailDev.Hosting/MailDevResource.cs

Line 28 in 212a101

$"smtp://{SmtpEndpoint.Property(EndpointProperty.Host)}:{SmtpEndpoint.Property(EndpointProperty.Port)}"

docs-aspire/docs/extensibility/snippets/MailDevResourceAndComponent/MailDev.Hosting/MailDevResource.cs

Line 28 in 212a101

$"smtp://{SmtpEndpoint.Property(EndpointProperty.Host)}:{SmtpEndpoint.Property(EndpointProperty.Port)}"

docs-aspire/docs/extensibility/custom-hosting-integration.md

Line 360 in 212a101

$"smtp://{SmtpEndpoint.Property(EndpointProperty.Host)}:{SmtpEndpoint.Property(EndpointProperty.Port)}"

docs-aspire/docs/extensibility/snippets/MailDevResourceWithCredentials/MailDev.Hosting/MailDevResource.cs

Line 48 in 212a101

$"Endpoint=smtp://{SmtpEndpoint.Property(EndpointProperty.Host)}:{SmtpEndpoint.Property(EndpointProperty.Port)};Username={UserNameReference};Password={PasswordParameter}"

Article abstract

N/A

Relevant searches

Searching through the repo for .Property(EndpointProperty.Host)}:{ is how I found the above in case more of these show up in between creating this issue and the docs being updated for 9.2.

---

Associated WorkItem - 418801

[davidfowl]

We need to write the document about endpoint references in the first place 😇 (also this is 9.2 content)