- Update and add more hooks (for new code that's about to be added).
- Address found issues.

The goal is to have all of the infrastructure that goes in building and
maintaining shore.co.il in a single repository. Why? Copy less code and
configuration around, maybe share some more code. Hopefully ease
maintenance. Maybe perform far-reaching changes in a single branch
instead of spreading it out across multiple repos (not really sure about
this).

- Use a common pre-commit config snippet for Ansible projects.
- Use a template for pre-commit GitLab CI job.
- Address some issues raised now by pre-commit.

- Inventory.
- Config.
- README.
- License.
- gitignore.
- pre-commit.