Scrape the docs for any mention of blueprints

[nwneisen]

With the transition to k0rdent instead of BOP, we need to remove any mentions of blueprints or BOP from the documentation as MKE4 no longer uses them anywhere. The good news is there isn't much but we should still do some searches and make sure it is all removed.

This is the only page specific to blueprints that I see:
https://docs.mirantis.com/mke-docs/docs/concepts/blueprints/