fix: squash context_processors.request DjangoTemplates warning

Running the project yields an error like:

    ?: (admin.W411) 'django.template.context_processors.request' must be enabled in DjangoTemplates (TEMPLATES) in order to use the admin navigation sidebar.

This commit squashes this error.

commerce_coordinator/settings/base.py

@@ -162,6 +162,7 @@ def root(*x):
                 'django.template.context_processors.debug',
                 'django.template.context_processors.i18n',
                 'django.template.context_processors.media',
+                'django.template.context_processors.request',
                 'django.template.context_processors.static',
                 'django.template.context_processors.tz',
                 'django.contrib.messages.context_processors.messages',