DOC: switch back to Sphinx html builder

.readthedocs.yml

@@ -1,7 +1,7 @@
 version: 2
 
 sphinx:
-  builder: dirhtml
+  builder: html
   configuration: docs/conf.py
   fail_on_warning: true
 

tox.ini

@@ -34,7 +34,7 @@ commands =
   sphinx-build \
     --keep-going \
     -TW \
-    -b dirhtml \
+    -b html \
     docs/ docs/_build/html
 description =
   Build documentation and API through Sphinx
@@ -64,7 +64,7 @@ commands =
     --re-ignore docs/api/.* \
     --watch docs \
     --watch src \
-    -b dirhtml \
+    -b html \
     docs/ docs/_build/html
 description =
   Set up a server to directly preview changes to the HTML pages
@@ -79,7 +79,7 @@ commands =
   sphinx-build \
     --keep-going \
     -TW \
-    -b dirhtml \
+    -b html \
     docs/ docs/_build/html
 description =
   Build documentation through Sphinx WITH output of Jupyter notebooks
@@ -111,7 +111,7 @@ commands =
     --re-ignore docs/api/.* \
     --watch docs \
     --watch src \
-    -b dirhtml \
+    -b html \
     docs/ docs/_build/html
 description =
   Set up a server to directly preview changes to the HTML pages
@@ -127,7 +127,7 @@ allowlist_externals =
 commands =
   sphinx-build \
     --keep-going \
-    -b dirhtml \
+    -b html \
     -nW \
     docs/ docs/_build/html
 description =