Cardano Updates

Point the end-of-course next step to the Hello Cardano overview instead of the
old curriculum path.

Signed-off-by: hade <[email protected]>

Document Pyth Pro price feeds on Cardano and add the page to the Oracles
sidebar. Drop the now-redundant Related footers from charli3 and orcfax.

feat: improved monitoring basic

Replace the eight flat lessons with their updated versions under a Practical
group, add a 15-lesson Theory track before them, and give each track a course
overview landing page (Blockchain Theory, Hello Cardano). Wire both groups in
the sidebar and redirect the old lesson URLs to their new paths.

Signed-off-by: Eric Torreborre <[email protected]>

Add VM and DP example, and start to model Cardano network

Signed-off-by: Akhil Repala <[email protected]>

bench: remove cardano-recon-framework

Signed-off-by: Pat Losoponkul <[email protected]>

Signed-off-by: hade <[email protected]>

Signed-off-by: hade <[email protected]>

Signed-off-by: hade <[email protected]>

Signed-off-by: hade <[email protected]>

Signed-off-by: Akhil Repala <[email protected]>

feat: use backbone peer as default peer

* mithril-stm from `0.10.32` to `0.10.33`