Update snap sync

[bradleycamacho]

Description

https://docs.optimism.io/operators/node-operators/management/snap-sync

Maintain structure, remove the non-snap sync options. Remove the tabs. There should be a feature page added for this too.

Action items

1. Do research on topic and raise any questions with the docs team
2. Write a first draft. It doesn't have to be worded perfectly as the docs team will review
3. Ping @bradleycamacho on discord and request review
4. Implement feedback from @bradleycamacho
5. Publish