Fix attribute parser

[ganyicz]

The scenario

Quotes inside Blade echo expressions break attribute parsing:

<x-button x-text="'{{ __("Print") }}'" />

The problem

Both the Tokenizer and the AttributeParser use quote tracking to determine attribute boundaries.

The quotes inside {{ }} toggle the quote state mid-value:

x-text="'{{ __("Print") }}'"
       ^       ^

The parser thinks the quoted string ended early, breaking the attribute in half.

The solution

Treat Blade echo expressions ({{ }} and {!! !!}) as opaque tokens in both places:

• Tokenizer::collectAttributes() — consume entire expressions without updating quote state.
• AttributeParser::parseAttributeStringToArray() — shield expressions with placeholders before regex parsing.