CI build failing due to mdbook-sitemap-generator

[joepio]

https://github.com/atomicdata-dev/atomic-server/actions/runs/12786826600/job/35644699031#step:7:3177

           +docs-pages *failed* |    Compiling mdbook-sitemap-generator v0.2.0
           +docs-pages *failed* | error[E0308]: mismatched types
           +docs-pages *failed* |   --> /usr/local/cargo/registry/src/index.crates.io-6f17d22bba15001f/mdbook-sitemap-generator-0.2.0/src/builder.rs:35:16
           +docs-pages *failed* |    |
           +docs-pages *failed* | 34 |     pub fn to_xml(&self) -> Result<String,DeError> {
           +docs-pages *failed* |    |                             ---------------------- expected `Result<std::string::String, DeError>` because of return type
           +docs-pages *failed* | 35 |         return to_string(&self);
           +docs-pages *failed* |    |                ^^^^^^^^^^^^^^^^ expected `Result<String, DeError>`, found `Result<String, SeError>`
           +docs-pages *failed* |    |
           +docs-pages *failed* |    = note: expected enum `Result<_, DeError>`
           +docs-pages *failed* |               found enum `Result<_, SeError>`
  
           +docs-pages *failed* | For more information about this error, try `rustc --explain E0308`.
           +docs-pages *failed* | error: could not compile `mdbook-sitemap-generator` (bin "mdbook-sitemap-generator") due to 1 previous error
           +docs-pages *failed* | error: failed to compile `mdbook-sitemap-generator v0.2.0`, intermediate artifacts can be found at `/tmp/cargo-installJq48sn`.
           +docs-pages *failed* | To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.
           +docs-pages *failed* | ERROR Earthfile:147:2
           +docs-pages *failed* |       The command
           +docs-pages *failed* |           RUN cargo install mdbook-sitemap-generator
           +docs-pages *failed* |       did not complete successfully. Exit code 101
  Error: The command RUN cargo install mdbook-sitemap-generator did not complete successfully. Exit code 101
``

[joepio]

Created a PR upstream to fix mdbook-sitemap-generator

[AlexMikhalev]

I forked https://github.com/AlexMikhalev/mdBook to fix this issue, then rewrote https://github.com/terraphim/md-book my way so that the docs look nicer.