fix(Holiday List): sort holidays on save to avoid disorienting the user (backport #42236) (#42251)

* fix(Holiday List): sort holidays on save to avoid disorienting the user (#42236)

fix: sort holidays on save to avoid disorienting the user
(cherry picked from commit ad137250fc)

# Conflicts:
#	erpnext/setup/doctype/holiday_list/holiday_list.py

* chore: fix conflicts

---------

Co-authored-by: Rucha Mahabal <ruchamahabal2@gmail.com>

erpnext/setup/doctype/holiday_list/holiday_list.py

@@ -19,6 +19,7 @@ class HolidayList(Document):
 	def validate(self):
 		self.validate_days()
 		self.total_holidays = len(self.holidays)
+		self.sort_holidays()
 
 	@frappe.whitelist()
 	def get_weekly_off_dates(self):
@@ -33,8 +34,6 @@ class HolidayList(Document):
 
 			self.append("holidays", {"description": _(self.weekly_off), "holiday_date": d, "weekly_off": 1})
 
-		self.sort_holidays()
-
 	@frappe.whitelist()
 	def get_supported_countries(self):
 		from holidays.utils import list_supported_countries
@@ -76,8 +75,6 @@ class HolidayList(Document):
 				"holidays", {"description": holiday_name, "holiday_date": holiday_date, "weekly_off": 0}
 			)
 
-		self.sort_holidays()
-
 	def sort_holidays(self):
 		self.holidays.sort(key=lambda x: getdate(x.holiday_date))
 		for i in range(len(self.holidays)):