[UPDT] BASE: Add function and templates for upcoming holidays card list

base/models.py

@@ -1647,6 +1647,20 @@ class Holidays(HorillaModel):
     def __str__(self):
         return self.name
 
+    def today_holidays(today=None) -> models.QuerySet:
+        """
+        Retrieve holidays that overlap with the given date (default is today).
+
+        Args:
+            today (date, optional): The date to check for holidays. Defaults to the current date.
+
+        Returns:
+            QuerySet: A queryset of `Holidays` instances where the given date falls between
+                    `start_date` and `end_date` (inclusive).
+        """
+        today = today or date.today()
+        return Holidays.objects.filter(start_date__lte=today, end_date__gte=today)
+
 
 class CompanyLeaves(HorillaModel):
     based_on_week = models.CharField(