Improve TS and JSON syntax highlighting (#9302)

Successor to #7767.

Release Notes:

- Improved syntax highlighting for TS/TSX and JSON.

crates/languages/src/json/highlights.scm

@@ -3,7 +3,7 @@
 (string) @string
 
 (pair
-  key: (string) @property)
+  key: (string) @property.json_key)
 
 (number) @number
 

crates/languages/src/tsx/highlights.scm

@@ -78,6 +78,7 @@
 [
   (string)
   (template_string)
+  (template_literal_type)
 ] @string
 
 (escape_sequence) @string.escape
@@ -93,6 +94,7 @@
   "."
   ","
   ":"
+  "?"
 ] @punctuation.delimiter
 
 [
@@ -200,6 +202,10 @@
   "${" @punctuation.special
   "}" @punctuation.special) @embedded
 
+(template_type
+  "${" @punctuation.special
+  "}" @punctuation.special) @embedded
+
 (type_arguments
   "<" @punctuation.bracket
   ">" @punctuation.bracket)

crates/languages/src/typescript/highlights.scm

@@ -78,6 +78,7 @@
 [
   (string)
   (template_string)
+  (template_literal_type)
 ] @string
 
 (escape_sequence) @string.escape
@@ -93,6 +94,7 @@
   "."
   ","
   ":"
+  "?"
 ] @punctuation.delimiter
 
 [
@@ -200,6 +202,10 @@
   "${" @punctuation.special
   "}" @punctuation.special) @embedded
 
+(template_type
+  "${" @punctuation.special
+  "}" @punctuation.special) @embedded
+
 (type_arguments
   "<" @punctuation.bracket
   ">" @punctuation.bracket)