Release calendar stack

[chrisbbreuer]

Clear and concise description of the problem

Create a stack developed by this framework to be utilized in a prod environment with ~100k visitors a month.

The calendar stack will include several calendar-related functionalities. Initially, we will release an "add to calendar" feature that will allow you to add events to a calendar of your choice easily.

Suggested solution

Similar to this UI/UX

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guide.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[chrisbbreuer]

https://github.com/stacksjs/calendar

[chrisbbreuer]

The only thing left here is that we need to implement the latest Stacks version.