Fix: No comma when locality is empty (small fix) (#2111)

* Fix: No comma when locality is empty

* better cleanup on address string

* fix test to one-liner

* add more testing

app/models/address.rb

@@ -2,7 +2,7 @@ class Address < ApplicationRecord
   belongs_to :addressable, polymorphic: true
 
   def to_s
-    I18n.t("address.format",
+    string = I18n.t("address.format",
       line1: line1,
       line2: line2,
       county: county,
@@ -11,5 +11,8 @@ class Address < ApplicationRecord
       country: country,
       postal_code: postal_code
     )
+
+    # Clean up the string to maintain I18n comma formatting
+    string.split(",").map(&:strip).reject(&:empty?).join(", ")
   end
 end