add prompt confirmation and update carton

assets/local/localization_en.json

@@ -13,7 +13,7 @@
     "btn.ok": "Ok",
     "feet":"Feet",
     "inch":"Inch",
-    "back.button_confirm":"Are you sure you want to continue without saving changes?",
+    "back.button_confirm":"Are you sure you want to continue without submitting changes?",
     "Buttons End ================================================================":"",
 
     "Offline Start ================================================================":"",
@@ -405,6 +405,7 @@
     "rate.custom.form.title":"Custom",
     "rate.cutom.product_type":"Product type",
     "rate.custom.fee":"Fee",
+    "rate.custom.shipment_rate":"Shipment rate",
     "rate.discount.weight":"Weight",
     "rate.discount.rate":"Discount rate",
     "rate.custom_duty.title":"Custom Fee",

assets/local/localization_mu.json

@@ -12,7 +12,7 @@
     "btn.ok": "အိုကေ",
     "feet":"ပေ",
     "inch":"လက်မ",
-    "back.button_confirm":"Are you sure you want to continue without saving changes?",
+    "back.button_confirm":"Are you sure you want to continue without submitting changes?",
     "Buttons End ================================================================":"",
 
     "Offline Start ================================================================":"",
@@ -405,6 +405,7 @@
     "rate.custom.form.title":"အကောက်ခွန်",
     "rate.cutom.product_type":"ကုန်ပစ္စည်းအမျိုးအစား",
     "rate.custom.fee":"အခကြေးငွေ",
+    "rate.custom.shipment_rate":"တင်ပို့နှုန်း",
     "rate.discount.weight":"အလေးချိန်",
     "rate.discount.rate":"လျှော့စျေးနှုန်း",
     "rate.custom_duty.title":"အကောက်ခွန်များ",