feat(ui): fine tuning components library with exiting app design

frontend/src/components/v2/UpgradePlanModal/UpgradePlanModal.tsx

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+import Link from 'next/link';
+
+import { Button } from '../Button';
+import { Modal, ModalClose, ModalContent } from '../Modal';
+
+type Props = {
+  isOpen?: boolean;
+  onOpenChange?: (isOpen: boolean) => void;
+  text: string;
+};
+
+export const UpgradePlanModal = ({ text, isOpen, onOpenChange }: Props): JSX.Element => (
+  <Modal isOpen={isOpen} onOpenChange={onOpenChange}>
+    <ModalContent
+      title="Unleash Infisical's Full Power"
+      footerContent={[
+        <Link
+          href={`/settings/billing/${localStorage.getItem('projectData.id') as string}`}
+          key="upgrade-plan"
+        >
+          <Button className="mr-4">Upgrade Plan</Button>
+        </Link>,
+        <ModalClose asChild key="upgrade-plan-cancel">
+          <Button colorSchema="secondary" variant="plain">
+            Cancel
+          </Button>
+        </ModalClose>
+      ]}
+    >
+      <p className="mb-4 text-bunker-300">{text}</p>
+      <p className="font-medium text-bunker-300">
+        Upgrade and get access to this, as well as to other powerful enhancements.
+      </p>
+    </ModalContent>
+  </Modal>
+);

frontend/src/components/v2/UpgradePlanModal/index.tsx

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+export { UpgradePlanModal } from './UpgradePlanModal';