Allow WebApplication.CreateEmptyBuilder to have host configuration provided using ConfigurationManager

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Is there an existing issue for this?

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

A am trying to use WebApplication.CreateEmptyBuilder but my host configuration is loaded from multiple sources (files), but there is no way to provide host configuration to WebApplication, even though the inner HostApplicationBuilder accepts a ConfigurationManager through its options.
Current design forces me to copy the contents of the WebApplicationBuilder class into my project, just to be able to forward my 'external' configuration.

Describe the solution you'd like

Add ConfigurationManager? Configuration property to the WebApplicationOptions that can be used to seed configuration by users.

Additional context

No response

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.