feat: add template sample to test app

As an example, because there is no theme configured here and this will
have no impact in the app. **However**, another change to the project
`README` is incoming after this change is merged to include a screenshot
with an example of the template provided working with
`django-surface-theme`.

testapp/testapp/settings.py

@@ -15,7 +15,6 @@
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
-
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/
 
@@ -27,7 +26,6 @@
 
 ALLOWED_HOSTS = []
 
-
 # Application definition
 
 INSTALLED_APPS = [
@@ -56,7 +54,7 @@
 TEMPLATES = [
     {
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [],
+        'DIRS': [BASE_DIR / 'testapp' / 'templates'],
         'APP_DIRS': True,
         'OPTIONS': {
             'context_processors': [
@@ -71,7 +69,6 @@
 
 WSGI_APPLICATION = 'testapp.wsgi.application'
 
-
 # Database
 # https://docs.djangoproject.com/en/3.2/ref/settings/#databases
 
@@ -82,7 +79,6 @@
     }
 }
 
-
 # Password validation
 # https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators
 
@@ -101,7 +97,6 @@
     },
 ]
 
-
 # Internationalization
 # https://docs.djangoproject.com/en/3.2/topics/i18n/
 
@@ -115,7 +110,6 @@
 
 USE_TZ = True
 
-
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/3.2/howto/static-files/
 

testapp/testapp/templates/includes/navigation.html

@@ -0,0 +1,5 @@
+{% block menu_options %}
+<div class="dropdown-divider"></div>
+<a class="dropdown-item" href="{% url 'admin:auth_user_change' request.user.pk %}">Profile</a>
+<a class="dropdown-item" href="{% url 'admin:apitokens_mytoken_changelist' %}">API Tokens</a>
+{% endblock %}