refactor: rename non_blank_fields_count to valid_field_numbers_count

app/services/bulk_upload/lettings/validator.rb

@@ -131,7 +131,7 @@ private
   def validate_fields_count
     return if halt_validations?
 
-    errors.add(:base, :wrong_field_count) if csv_parser.non_blank_fields_count != csv_parser.class::FIELDS
+    errors.add(:base, :wrong_field_count) if csv_parser.valid_field_numbers_count != csv_parser.class::FIELDS
   end
 
   def halt_validations!

app/services/bulk_upload/lettings/year2023/csv_parser.rb

@@ -46,7 +46,7 @@ class BulkUpload::Lettings::Year2023::CsvParser
     cols[field_numbers.find_index(field) + col_offset]
   end
 
-  def non_blank_fields_count
+  def valid_field_numbers_count
     field_numbers.count { |f| f != "field_blank" }
   end