[fix] email digest date range starting with opening balance of day one not closing (#6524)

ie monthly currently get's balance at the end of 1st of september to the 30th of september instead of the beginning of the 1st aka the end of the 31st fo august
diff --git a/erpnext/setup/doctype/email_digest/email_digest.py b/erpnext/setup/doctype/email_digest/email_digest.py
index 7ec04c8..ac999ed 100644
--- a/erpnext/setup/doctype/email_digest/email_digest.py
+++ b/erpnext/setup/doctype/email_digest/email_digest.py
@@ -340,13 +340,13 @@
 		count = 0
 		for account in accounts:
 			balance += (get_balance_on(account, date = self.future_to_date)
-				- get_balance_on(account, date = self.future_from_date))
+				- get_balance_on(account, date = self.future_from_date - timedelta(days=1)))
 
 			count += (get_count_on(account,fieldname, date = self.future_to_date )
-				- get_count_on(account,fieldname, date = self.future_from_date))
+				- get_count_on(account,fieldname, date = self.future_from_date - timedelta(days=1)))
 
 			past_balance += (get_balance_on(account, date = self.past_to_date)
-				- get_balance_on(account, date = self.past_from_date))
+				- get_balance_on(account, date = self.past_from_date - timedelta(days=1)))
 
 		return balance, past_balance, count