[component] Grammarly

As a Workflow Developer,
I want to be able to use the native **Grammarly** connector,
So that I can implement more complex integration use cases involving **Grammarly**.

**References**

- Website: https://www.grammarly.com/
- Documentation: https://developer.grammarly.com/

**Acceptance Criteria**

Implemented actions:
TODO

Implemented triggers
TODO

**Definition of Done**

- [ ] Unit/Integration tests
- [ ] Connection setup steps
- [ ] Guidejar tutorial for connection setup
- [ ] Documentation is generated and available

Start with the Grammarly developer documentation and website linked in the issue to determine the available API capabilities. Define the actions and triggers before implementation, then cover the listed unit/integration tests, connection setup steps, Guidejar tutorial, and generated documentation. Done means all acceptance criteria and Definition of Done items are complete.

Written by the indexing model from the issue text.