[BB-8492] Add Support for Matomo Analytics
Story
"As a Listaflow developer, I want to know how users are using the product so that I can make it better"
Full description
Create a new website entry in OpenCraft's Matomo and modify Listaflow to use it. Listaflow should send pageview events when the page changes.
Completion criteria
- Create an entry for Listaflow in Matomo
- The tracking code is loaded if the tracking information is set via environment variable
- Page views are tracked by the loaded code
Documentation updates & improvements criteria
- Add docs for how to set the Matomo info
Edited by Fox Piacenti