Feature/version 3

[owen2345]

• [x] Configure docker for local setup
• [ ] Use some getting-started documentation as the default content
• [ ] Improve performance
  • [ ] Refactor custom fields/custom field group
• [ ] Refactor/improve web documentation
• [ ] Improve admin UI for easier and more intuitive usage
• [ ] Improve and add missing tests (unit and end-to-end)
• [ ] Improve code quality and code style
  • [x] Frontend
  • [ ] Backend
• [ ] Add shell service to generate the entire app (rails + camaleon + docker settings)
• [ ] Reduce third-party gem dependencies
• [ ] Upgrade tinymce 4 to 5 and 5 to 6 (Optional)
• [ ] Refactor or replace features - [ ] New uploader - [ ] New built-in theme that uses the same frontend stack as the admin theme so we don't have any additional dependencies.

Some discussions here: https://github.com/owen2345/camaleon-cms/issues/1027 Please do not hesitate to add/edit/remove topics from the list