Some updates to Lighthouse book (#6995)

* #6447


  - Move some deprecated pages to a new section under `Archived`

- Remove fallback log in mev as the log will not be present after VC using `/eth/v3/validator/blocks` endpoint by default
- Add warning against using Btrfs file system (thank you @ChosunOne for the report)
- Add data shared by @mcdee  on tree states API queries time
- Rename partial withdrawals to validator sweep to differentiate it from the upcoming execution layer partial withdrawals
- Update NAT API response
- Update docs on IPv6

- Rename .md files to follow a standard prefix section name, e.g., installation_*.md, advanced_*.md
- Standardise .md files using underscore `_` instead of hyphen `-` to be consistent with other files naming conventions.

book/src/installation.md

@@ -4,18 +4,18 @@ Lighthouse runs on Linux, macOS, and Windows.
 
 There are three core methods to obtain the Lighthouse application:
 
-- [Pre-built binaries](./installation-binaries.md).
-- [Docker images](./docker.md).
-- [Building from source](./installation-source.md).
+- [Pre-built binaries](./installation_binaries.md).
+- [Docker images](./installation_docker.md).
+- [Building from source](./installation_source.md).
 
 Additionally, there are two extra guides for specific uses:
 
-- [Raspberry Pi 4 guide](./pi.md). (Archived)
-- [Cross-compiling guide for developers](./cross-compiling.md).
+- [Raspberry Pi 4 guide](./archived_pi.md). (Archived)
+- [Cross-compiling guide for developers](./installation_cross_compiling.md).
 
 There are also community-maintained installation methods:
 
-- [Homebrew package](./homebrew.md).
+- [Homebrew package](./installation_homebrew.md).
 - Arch Linux AUR packages: [source](https://aur.archlinux.org/packages/lighthouse-ethereum),
   [binary](https://aur.archlinux.org/packages/lighthouse-ethereum-bin).