[Rectangle] Add Cascade actions

[crickford]

Description

Adds support for the Cascade App & Cascade All window management actions to the Rectangle extension (as requested in #13981)

Screencast

Checklist

• I read the extension guidelines
• I read the documentation about publishing
• I ran npm run build and tested this distribution build in Raycast
• I checked that files in the assets folder are used by the extension itself
• I checked that assets used by the README are placed outside of the metadata folder

[raycastbot]

Thank you for the update! 🎉

You can expect an initial review within five business days.

[pernielsentikaer]

Thanks for the update 🔥

Could you use the same background for the new metadata image 🙂

[pernielsentikaer]

Hi 👋

Looks good to me, approved 🔥

[github-actions]

Published to the Raycast Store:
https://raycast.com/crickford/rectangle

[raycastbot]

🎉 🎉 🎉

We've rewarded your Raycast account with some credits. You will soon be able to exchange them for some swag.