Add Rust fields as argument textobject (#9637)

* added field_declaration_list and field_initializer_list as parameter textobjects

* removed field_declaration_listt from textobjects.scm

runtime/queries/rust/textobjects.scm

@@ -34,6 +34,9 @@
 (arguments
   ((_) @parameter.inside . ","? @parameter.around) @parameter.around)
 
+(field_initializer_list  
+  ((_) @parameter.inside . ","? @parameter.around) @parameter.around)
+
 [
   (line_comment)
   (block_comment)