feat(syntax)!: implement the new style guide

[Jint-lzxy]

This PR is a rewrite of #481, following the updated standard captures (main changes are in treesitter.lua and semantic_tokens.lua).

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Gently pinging @sgoudham, I'm curious about the state of the style guide PR (https://github.com/catppuccin/catppuccin/pull/2109)? No rush at all, just saying that if you want me to clarify some ideas in real-time, feel free to @冷酔閑吟 (or @jint_lzxy_) on Discord lmao