feat: improve grammar support

[giladgd]

Description of change

• feat: improve grammar support
• feat: improve JSON schema grammar
• chore: enable release discussions

Pull-Request Checklist

• [x] Code is up-to-date with the master branch
• [x] npm run format to apply eslint formatting
• [x] npm run test passes with this change
• [x] This pull request links relevant issues as Fixes #0000
• [x] There are new or updated unit tests validating the change
• [ ] Documentation has been updated to reflect this change
• [x] The new commits and pull request title follow conventions explained in pull request guidelines (PRs that do not follow this convention will not be merged)