DOC: Update theme configuration for upcoming changes

Due to the merging of matplotlib/mpl-sphinx-theme#26

Author: QuLogic

doc/conf.py

@@ -334,7 +334,7 @@ def matplotlib_reduced_latex_scraper(block, block_vars, gallery_conf,
 # the sidebar.
 html_logo = "_static/logo2.svg"
 html_theme_options = {
-    "native_site": True,
+    "navbar_links": "internal",
     # collapse_navigation in pydata-sphinx-theme is slow, so skipped for local
     # and CI builds https://github.com/pydata/pydata-sphinx-theme/pull/386
     "collapse_navigation": not is_release_build,