Sphinx-design2

♻️ REFACTOR: `test_sd_hide_root_title` to `sd_hide_title` front-matter

👌 IMPROVE: dropdown chevrons

✨ NEW: Add `test_sd_hide_root_title` config option to hide the root title.

👌 IMPROVE: `sd-card-hover:hover` add scale 101%

📚 DOCS: Update landing page

✨ NEW: Add `reverse` option for `grid` directive

✨ NEW: Add animations

✨ NEW: Add `card-carousel` directive

👌 IMPROVE: Make octicon's size variable

👌 IMPROVE: Allow `auto` for grid columns