porting to mermaid v10

[frehberg]

Changes:

• Introducing new dependendency to crate "zip"
• Bundling 32MB mermaid sources using macro 'include_dir!("doc/js/")'
• Extracting files into target/doc/static.files.mermaid/
• Migrating to ESM import style of mermaid v10 ESM format
• Robust detection of dark-mode
• Dynamic import depending on rustdoc root-path definition: document.getElementById('rustdoc-vars').attributes['data-root-path'].value
• By default import from local storage rootPath + 'static.files.mermaid/mermaid.esm.min.mjs'
• If import from local storage fails, falling back to remote https://unpkg.com/mermaid@10/dist/mermaid.esm.min.mjs
• If neither one succeeds, replacing Mermaid-Markdowns with following notice-marker

  ⚠ Cannot render diagram! Failed to import module from local file and remote location also! Either access rustdocs vie HTTP/S or enable local file access in browsers Safari/Firefox, or start Chrome with flag '--allow-file-access-from-files'. Otherwise access the rustdoc pages using a [local web server](https://developer.mozilla.org/en-US/docs/Learn/Common_questions/Tools_and_setup/set_up_a_local_testing_server).