feat: multi-line templ/script/css function params syntax highlighting

[alehechka]

Overview

This adds more verbose regex patterns to templ and script function begin patterns as well as adds support for multi-line params on each of these function types.

Templ Functions

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Script Functions

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[alehechka]

I just pushed a third commit that addresses css functions with params/multi-line params. With this I also refactored the old organization to instead have one large object with nested patterns for the internals of the function to avoid duplicate patterns for css property names.

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[joerdav]

Perfect, thanks for all the support on this!