Fix globaltoc settings

and moved custom.css stuff downstream

sphinx_astropy/conf/v2.py

@@ -251,21 +251,9 @@ def check_sphinx_version(expected_version):
 # a list of builtin themes.
 html_theme = 'pydata_sphinx_theme'
 
-# FIXME: Have to figure this out if we want left nav on main page only.
-# Custom sidebar templates, maps document names to template names.
-#
-# Also need this _static/custom.css to remove bullet points:
-#    .sidebar-primary-item > ul > li.toctree-l1 {
-#        display: inline;
-#        font-size: larger;
-#    }
-#
-#html_static_path = ["_static"]
-#html_css_files = ["custom.css"]
 html_sidebars = {
     "index": ["globaltoc.html"]
 }
-#globaltoc_maxdepth = -1  # FIXME: this isn't working, not sure why
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
@@ -283,6 +271,8 @@ def check_sphinx_version(expected_version):
     "icon_links": [],
     "navigation_depth": 2,
     "show_nav_level": 2,
+    "globaltoc_collapse": False,
+    "globaltoc_maxdepth": 2,
     "use_edit_page_button": False
 }