Updated tree-sitter query scopes (#896)

* updated theme scopes

variable.property -> variable.field
property -> variable.field

* updated theme scopes

* update book and themes

updated book and themes to reflect scope changes

* wip

* update more queries

* update dark_plus.toml

runtime/queries/rust/highlights.scm

@@ -15,15 +15,13 @@
 ; Primitives
 ; ---
 
-(escape_sequence) @escape
+(escape_sequence) @constant.character.escape
 (primitive_type) @type.builtin
 (boolean_literal) @constant.builtin.boolean
+(integer_literal) @constant.numeric.integer
+(float_literal) @constant.numeric.float
+(char_literal) @constant.character
 [
-  (integer_literal)
-  (float_literal)
-] @number
-[
-  (char_literal)
   (string_literal)
   (raw_string_literal)
 ] @string
@@ -40,10 +38,10 @@
 (enum_variant (identifier) @type.enum.variant)
 
 (field_initializer
-  (field_identifier) @property)
+  (field_identifier) @variable.other.member)
 (shorthand_field_initializer
-  (identifier) @variable.property)
-(shorthand_field_identifier) @variable.property
+  (identifier) @variable.other.member)
+(shorthand_field_identifier) @variable.other.member
 
 (lifetime
   "'" @label
@@ -81,9 +79,24 @@
   ] @punctuation.bracket)
 
 ; ---
-; Parameters
+; Variables
 ; ---
 
+(let_declaration
+  pattern: [
+    ((identifier) @variable)
+    ((tuple_pattern
+      (identifier) @variable))
+  ])
+  
+; It needs to be anonymous to not conflict with `call_expression` further below. 
+(_
+ value: (field_expression
+  value: (identifier)? @variable
+  field: (field_identifier) @variable.other.member))
+
+(arguments
+  (identifier) @variable.parameter)
 (parameter
 	pattern: (identifier) @variable.parameter)
 (closure_parameters
@@ -336,4 +349,4 @@
 
 (type_identifier) @type
 (identifier) @variable
-(field_identifier) @property
+(field_identifier) @variable.other.member