Add massmailer field clearing

[miguelaenlle]

• Added functionality to show "Are you sure you want to send this notification?" alert before actually sending
• Clears fields when the user sends
• Tested this by replacing the request promises with setTimeout calls:

new Promise((resolve, reject) => {
   setTimeout(() => {
      resolve(true);
   }, 2000);
 });

[cloudflare-workers-and-pages]

Deploying rp-web-sponsor with    Cloudflare Pages

Latest commit:	6b907ea
Status:	✅  Deploy successful!
Preview URL:	https://125f3013.rp-web-sponsor.pages.dev
Branch Preview URL:	https://fix-admin-notifications.rp-web-sponsor.pages.dev

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[Copilot]

Pull Request Overview

This PR adds a confirmation dialog and field clearing functionality to the mass mailer. When users attempt to send emails or notifications, they'll now see a confirmation dialog, and upon successful submission, all form fields will be automatically cleared.

• Added a confirmation dialog using window.confirm before sending emails/notifications
• Implemented form field clearing after successful API requests using helpers.resetForm()
• Applied consistent formatting improvements to the component's JSX

---

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[Copilot]

This commented-out modal code appears to be leftover development code that should be removed. It doesn't serve any purpose and clutters the codebase.

Suggested change

	{/* <Modal isOpen={} onClose={onClose}>
	<ModalOverlay />
	<ModalContent>
	<ModalHeader>Modal Title</ModalHeader>
	<ModalCloseButton />
	<ModalBody>
	</ModalBody>
	<ModalFooter>
	<Button colorScheme='blue' mr={3} onClick={onClose}>
	Close
	</Button>
	<Button variant='ghost'>Secondary Action</Button>
	</ModalFooter>
	</ModalContent>
	</Modal> */}

[Copilot]

Using window.confirm creates accessibility issues as it's not screen reader friendly and doesn't follow modern UI patterns. Consider implementing a proper modal dialog component for better accessibility and user experience.

[cloudflare-workers-and-pages]

Deploying rp-web-site with    Cloudflare Pages

Latest commit:	6b907ea
Status:	✅  Deploy successful!
Preview URL:	https://b77d7dc2.rp-web-site.pages.dev
Branch Preview URL:	https://fix-admin-notifications.rp-web-site.pages.dev

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[miguelaenlle]

The diff got screwed up, I'll open a new one