* feat: add tabs and tab shortcodes support
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* fix: adjust tab-container styles for improved layout and responsiveness
- [x] Underline Style (Default)
- [x] Pill Style
- [x] Card Style
- [x] Segment Style
* test: add tabs comprehensive test cases
* style: code optimization
* fix: add tabs support in home scope
* docs: add `<tab-container>` element reference to README files
* feat: enhance tab-container with loading mixin and simplify code
* refactor: update variable references to use root prefix in styles
* docs: add tabs shortcode support to README files
* fix: ensure shortcode is enclosed within a tabs block
* feat: add responsive design for tab-container on smaller screens
* test: remove unnecessary placement attribute for segment tabs
* refactor: remove unused vertical attribute from tabs shortcode
* fix: set default tab type to 'underline' for consistency
* refactor: update tab-button and tab-panel selectors for improved specificity
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