🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Author: gcf-owl-bot[bot]

docs/conf.py

@@ -24,11 +24,9 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-from __future__ import annotations
-
 import os
+import shlex
 import sys
-from typing import Any
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -58,7 +56,7 @@
     "sphinx.ext.napoleon",
     "sphinx.ext.todo",
     "sphinx.ext.viewcode",
-    "myst_parser",
+    "recommonmark",
 ]
 
 # autodoc/autosummary flags
@@ -100,7 +98,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = "en-US"
+language = None
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
@@ -150,27 +148,19 @@
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = "pydata_sphinx_theme"
+html_theme = "alabaster"
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
-# https://pydata-sphinx-theme.readthedocs.io/en/stable/user_guide/layout.html#references
 html_theme_options = {
-    "github_url": "https://github.com/googleapis/python-bigquery-dataframes",
-    "logo": {
-        "text": "BigQuery DataFrames (BigFrames)",
-    },
-    "external_links": [
-        {
-            "name": "Getting started",
-            "url": "https://docs.cloud.google.com/bigquery/docs/dataframes-quickstart",
-        },
-        {
-            "name": "User guide",
-            "url": "https://docs.cloud.google.com/bigquery/docs/bigquery-dataframes-introduction",
-        },
-    ],
+    "description": "BigQuery DataFrames provides DataFrame APIs on the BigQuery engine",
+    "github_user": "googleapis",
+    "github_repo": "python-bigquery-dataframes",
+    "github_banner": True,
+    "font_family": "'Roboto', Georgia, sans",
+    "head_font_family": "'Roboto', Georgia, serif",
+    "code_font_family": "'Roboto Mono', 'Consolas', monospace",
 }
 
 # Add any paths that contain custom themes here, relative to this directory.
@@ -274,7 +264,7 @@
 
 # -- Options for LaTeX output ---------------------------------------------
 
-latex_elements: dict[str, Any] = {
+latex_elements = {
     # The paper size ('letterpaper' or 'a4paper').
     #'papersize': 'letterpaper',
     # The font size ('10pt', '11pt' or '12pt').
@@ -292,7 +282,7 @@
     (
         root_doc,
         "bigframes.tex",
-        "BigQuery DataFrames (BigFrames)",
+        "bigframes Documentation",
         author,
         "manual",
     )
@@ -327,7 +317,7 @@
     (
         root_doc,
         "bigframes",
-        "BigQuery DataFrames (BigFrames)",
+        "bigframes Documentation",
         [author],
         1,
     )
@@ -346,7 +336,7 @@
     (
         root_doc,
         "bigframes",
-        "BigQuery DataFrames (BigFrames)",
+        "bigframes Documentation",
         author,
         "bigframes",
         "bigframes Library",