[Docs] Default Permissions: The tables could use some spacing

### Current Behavior The tables in [Default Permissions](https://docs.layer5.io/cloud/reference/default-permissions/) currently look too congested. ### Expected Behavior Some vertical spacing should be added between tables to help with visual clarity. ### Screenshots/Logs <img width="966" height="712" alt="Image" src="https://github.com/user-attachments/assets/d26440a6-bb92-40a2-8d5c-020439138842" /> <!-- Optional #### To Reproduce 1. Go to '...' 2. Click on '....' 3. Scroll down to '....' 4. See error --> --- #### Contributor Guide and Resources - 📚 [Instructions for contributing to documentation](https://github.com/layer5io/docs/blob/master/CONTRIBUTING.md) - Layer5 documentation [site](https://docs.layer5.io) and [source](https://github.com/layer5io/docs/) - 🎨 Wireframes and [designs for Layer5 site](https://www.figma.com/file/5ZwEkSJwUPitURD59YHMEN/Layer5-Designs) in Figma [(open invite)](https://www.figma.com/team_invite/redeem/GvB8SudhEOoq3JOvoLaoMs) - 🙋🏾🙋🏼 Questions: [Layer5 Discussion Forum](https://discuss.layer5.io) and [Layer5 Community Slack](http://slack.layer5.io)