docs: Improve docs pipeline for lance-duckdb connector #5629
Description
After #5613 got merged, this is the feedback on improving the pipeline to keep the lance.org docs site in sync with the main source in the lance-duckdb repo.
We should make this consistent with the other connector docs, so the doc stays in the connector repo and we build it into the main website only during deployment time?
This would require updating the lance-duckdb source to use mkdocs, so that it be worked into the Lance docs CI pipeline as these docs are built.