docs: enable sphinx-design

So we can access e.g. tabs.

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>

docs/conf.py

@@ -30,6 +30,7 @@ release = "0.1.0"
 
 extensions = [
     "myst_parser",
+    "sphinx_design",
 ]
 
 exclude_patterns = ["_build", "legacy", "Thumbs.db", ".DS_Store"]

docs/requirements.txt

@@ -1,3 +1,4 @@
 sphinx~=8.2
 myst-parser~=4.0
 sphinx-book-theme~=1.1
+sphinx-design~=0.6