fix(minor): consider lowercase value for comparision in set_formatted_input for datetime field

(cherry picked from commit 71bb5e835d)

frappe/public/js/frappe/form/controls/datetime.js

@@ -5,7 +5,7 @@ frappe.ui.form.ControlDatetime = class ControlDatetime extends frappe.ui.form.Co
 		if (!value) {
 			this.datepicker.clear();
 			return;
-		} else if (value === "Today") {
+		} else if (value.toLowerCase() === "today") {
 			value = this.get_now_date();
 		} else if (value.toLowerCase() === "now") {
 			value = frappe.datetime.now_datetime();