Docs now fully downloadable in LLM friendly format

[dan]

If you go look at https://fusionauth.io/docs/ and scroll to the bottom, you'll see a new section called 'Download docs'.

This takes you to fusionauth.io/docs/llms-full.txt which is all of our documentation (5MB!) in one file so you can upload it to your favorite LLM and query it.

Hope you all find it useful.