Add MD syntax highlighting to editor component

[nazmulidris]

Existing MD SH crates

• pulldown-cmark: https://github.com/nazmulidris/syntect
• syntect: https://github.com/nazmulidris/syntect

Example of rust md CLI formatter (using both crates above)

• mdcat: https://github.com/nazmulidris/mdcat/blob/main/Cargo.toml

MD -> AST:

• markdown-rs: https://github.com/wooorm/markdown-rs

Parsing resources

• https://iximiuz.com/en/posts/rust-writing-parsers-with-nom/
• https://blog.logrocket.com/parsing-in-rust-with-nom/
• https://naiveai.hashnode.dev/practical-parsing-nom