Update Unison tree-sitter grammar for type changes and add indent queries (#9505)

* Update Unison tree-sitter grammar for type changes

* Add indent queries for Unison

* Improve Unison indent queries

runtime/queries/unison/highlights.scm

@@ -9,8 +9,6 @@
 ;; Keywords
 [
   (kw_forall)
-  (unique_kw)
-  (structural_kw)
   (type_kw)
   (kw_equals)
   (do)
@@ -51,7 +49,7 @@
 (blank_pattern) @variable.builtin
 
 ;; Types
-(record_field name: (wordy_id) @variable.other.member type: (wordy_id) @type)
+(record_field name: (wordy_id) @variable.other.member type: (_) @type)
 (type_constructor (type_name (wordy_id) @constructor))
 (ability_declaration type_name: (wordy_id) @type type_arg: (wordy_id) @variable.parameter)
 (effect (wordy_id) @special) ;; NOTE: an effect is just like a type, but in signature we special case it

runtime/queries/unison/indents.scm

@@ -0,0 +1,15 @@
+[
+  (term_definition)
+  (type_declaration)
+  (pattern)
+  (tuple_or_parenthesized)
+  (literal_list)
+  (tuple_pattern)
+  (function_application)
+  (exp_if)
+  (constructor)
+  (delay_block)
+  (type_signature)
+] @indent
+
+[(kw_then) (kw_else) (cases)] @indent.always @extend