Add tz and add at its dropdown component

src/components/General/TzDropdown.js

@@ -0,0 +1,13 @@
+import React from 'react';
+import { timezones } from './../../assets/data/timezones';
+import { Dropdown } from 'rsuite';
+
+export default function Tzdropdown() {
+	return (
+		<Dropdown title='Timezone'>
+			{timezones.map((tz) => (
+				<Dropdown.Item key={tz}>{tz}</Dropdown.Item>
+			))}
+		</Dropdown>
+	);
+}