Update highlights.scm for new grammar nodes

Add queries for comment_content, raw_content, embedded_content,
and embedded_language nodes produced by the updated grammar.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

queries/highlights.scm

@@ -2,12 +2,17 @@
 
 ; Comments
 (html_comment) @comment
+(template_comment) @comment
+(comment_content) @comment
 
 ; Raw blocks (verbatim content)
 (raw_block) @string.special
+(raw_content) @string.special
 
-; Template comments
-(template_comment) @comment
+; Embedded language
+(embedded_language) @string.special
+(embedded_content) @string.special
+(language_name) @label
 
 ; Keywords
 "@use" @keyword
@@ -99,8 +104,5 @@
 (escape_sequence) @escape
 (escape_at) @escape
 
-; Embedded
-(language_name) @label
-
 ; Variables (fallback)
 (identifier) @variable