ArticlePage Templates

#### Is your feature request related to a problem? Please describe.
If you're using an article page and want to change to different template the content is no longer wrapped in a container causing all the content to fill the whole page without the margins.

#### Describe the solution you'd like
Possibly more templates, or remove those options on that page model.

#### Describe alternatives you've considered
I added an if statement on the webpage template checking the page type and conditionally added a container if neccessary

#### Additional context
This issue came when a client wanted to use a different template on their article page.