Add copy button to sphinx notebooks (#1622)

This adds a copy button at the top right corner of all notebook cells in
sphinx
notebooks.

docs/conf.py

@@ -46,6 +46,7 @@ extensions = [
     "sphinx.ext.viewcode",
     "sphinxcontrib.autodoc_pydantic",
     "myst_nb",
+    "sphinx_copybutton",
     "sphinx_panels",
     "IPython.sphinxext.ipython_console_highlighting",
 ]

pyproject.toml

@@ -65,6 +65,7 @@ sphinx-panels = "^0.6.0"
 toml = "^0.10.2"
 myst-nb = "^0.17.1"
 linkchecker = "^10.2.1"
+sphinx-copybutton = "^0.5.1"
 
 [tool.poetry.group.test.dependencies]
 pytest = "^7.2.0"