feat(scala): add some missing highlights

queries/scala/highlights.scm

@@ -120,6 +120,9 @@
 (binding
   name: (identifier) @variable.parameter)
 
+(lambda_expression
+  parameters: (identifier) @variable.parameter)
+
 ; expressions
 (field_expression
   field: (identifier) @variable.member)
@@ -177,7 +180,6 @@
   ; `macro` not implemented yet
   "object"
   "override"
-  "package"
   "val"
   "var"
   "with"
@@ -211,6 +213,8 @@
 
 (wildcard) @variable.parameter
 
+(namespace_wildcard) @punctuation.special
+
 (annotation) @attribute
 
 ; special keywords
@@ -235,6 +239,7 @@
 [
   "."
   ","
+  ":"
 ] @punctuation.delimiter
 
 [
@@ -248,6 +253,9 @@
 
 [
   "=>"
+  "?=>"
+  "="
+  "!"
   "<-"
   "@"
 ] @operator
@@ -255,6 +263,7 @@
 [
   "import"
   "export"
+  "package"
 ] @keyword.import
 
 [
@@ -278,6 +287,10 @@
   (case_clause
     "case" @keyword.conditional))
 
+(case_block
+  (case_clause
+    "=>" @punctuation.delimiter))
+
 (operator_identifier) @operator
 
 ((identifier) @type