v1.2.0

Refactor Vite & Storybook configuration

- Update main.js to change component aliasing and improve twig plugin configuration.
- Modify preview-body.html to replace specific settings with placeholders.
- Remove gin-variables.css and related imports from preview.js and preview.less.
- Update README.md for clarity on Vite build outputs.
- Delete unused .gitkeep file in dist directory.
- Change post-build script path in package.json and implement new post-build.js functionality.
- Add utility to remove empty JavaScript files from the dist directory in vite.config.js.