fix(pretty-date): plural form when the value is 1 (#20619) (#20641)

(cherry picked from commit 6248d8f)

Co-authored-by: Bread Genie <63963181+BreadGenie@users.noreply.github.com>

frappe/utils/data.py

@@ -1335,15 +1335,15 @@ def pretty_date(iso_datetime):
 		return _("Yesterday")
 	elif dt_diff_days < 7.0:
 		return _("{0} days ago").format(cint(dt_diff_days))
-	elif dt_diff_days < 12:
+	elif dt_diff_days < 14:
 		return _("1 week ago")
 	elif dt_diff_days < 31.0:
-		return _("{0} weeks ago").format(cint(math.ceil(dt_diff_days / 7.0)))
-	elif dt_diff_days < 46:
+		return _("{0} weeks ago").format(dt_diff_days // 7)
+	elif dt_diff_days < 61.0:
 		return _("1 month ago")
 	elif dt_diff_days < 365.0:
-		return _("{0} months ago").format(cint(math.ceil(dt_diff_days / 30.0)))
-	elif dt_diff_days < 550.0:
+		return _("{0} months ago").format(dt_diff_days // 30)
+	elif dt_diff_days < 730.0:
 		return _("1 year ago")
 	else:
 		return "{0} years ago".format(cint(math.floor(dt_diff_days / 365.0)))