docs: Switch to using the edx sphinx theme.

docs/en_us/dashboard/source/conf.py

@@ -4,12 +4,11 @@
 import os
 import sys
 
+import edx_theme
 # on_rtd is whether we are on readthedocs.org, this line of code grabbed from docs.readthedocs.org
 html_theme = 'edx_theme'
 
-html_theme_path = ['../../_themes']
-
-html_favicon = '../../_themes/edx_theme/static/css/favicon.ico'
+html_theme_path = [edx_theme.get_html_theme_path()]
 
 sys.path.append(os.path.abspath('../../../'))
 sys.path.append(os.path.abspath('../../'))
@@ -28,6 +27,9 @@
 # so a file named "default.css" will overwrite the builtin "default.css".
 # html_static_path.append('source/_static')
 
+# Add any Sphinx extension module names here, as strings. They can be extensions
+# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+extensions = ['edx_theme']
 
 # General information about the project.
 project = 'Using edX Insights'

requirements/doc.in

@@ -3,4 +3,4 @@
 -r base.txt # Core dependencies of edx-analytics-dashboard
 
 Sphinx
-sphinx_rtd_theme==0.1.9
+edx_sphinx_theme

requirements/doc.txt

@@ -150,6 +150,8 @@ edx-opaque-keys==2.2.2
     #   edx-drf-extensions
 edx-rest-api-client==5.4.0
     # via -r requirements/base.txt
+edx-sphinx-theme==3.0.0
+    # via -r requirements/doc.in
 edx-toggles==4.2.0
     # via -r requirements/base.txt
 future==0.18.2
@@ -308,6 +310,7 @@ six==1.16.0
     #   edx-django-release-util
     #   edx-drf-extensions
     #   edx-i18n-tools
+    #   edx-sphinx-theme
     #   libsass
     #   pyjwkest
     #   python-dateutil
@@ -328,9 +331,7 @@ social-auth-core==3.2.0
 sphinx==4.1.2
     # via
     #   -r requirements/doc.in
-    #   sphinx-rtd-theme
-sphinx_rtd_theme==0.1.9
-    # via -r requirements/doc.in
+    #   edx-sphinx-theme
 sphinxcontrib-applehelp==1.0.2
     # via sphinx
 sphinxcontrib-devhelp==1.0.2