Support for different repos for referencing

Currently we use this mkdocs-core-container for our backstage instance.
One of the drawback we have is that there is support for only two plugins search and mono repo.
With mono repo plugin, it currently doesn't allow us to refer to the mkdocs.yaml from different repos.

Do you have plans to support either
1>plugins such as mkdocs-multirepo-plugin
2>different repo's under mkdocs-monorepo-plugin

Start by reviewing the current mkdocs-monorepo-plugin behavior and the request for cross-repository mkdocs.yaml references. Compare supporting mkdocs-multirepo-plugin with extending the monorepo plugin; the issue does not define a preferred approach, implementation location, tests, or completion criteria.

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