Add water-reminder extension

[alejandrofalcar]

Description

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]

Congratulations on your new Raycast extension! 🚀

You can expect an initial review within five business days.

Once the PR is approved and merged, the extension will be available on our Store.

[LitoMore]

There is already a water reminder extension in the store: https://www.raycast.com/FezVrasta/acqua.

[pernielsentikaer]

As @LitoMore mentions, we already have that. Did you search for it before starting yours? If yes, and it didn't appear, what did you search for so we can enhance the keywords for better visibility? 😊