[New Plugin] Adds multi-widget plugin

[musa11971]

This PR adds the Multi Widget plugin to the listing.

[saade]

Hey! Thanks for your contribution!

We noticed that your plugin image is just a basic screenshot of a component. To make your plugin stand out, we recommend improving the image by showcasing the plugin’s functionality more clearly. You can include the plugin name, a brief description, or an illustrative representation of what your plugin does rather than just a form field screenshot.

A good plugin image helps users understand its purpose at a glance and makes it more appealing. Let us know once you’ve made these improvements. Thanks!

[saade]

Hey! Just checking in, we haven’t heard back from you in a while.

If we don’t hear from you within the next 2 days, we’ll go ahead and close this PR. You’re welcome to reopen it or submit a new one once you’re ready to continue.

Thanks!