Fix EZP-22603: Html Title not reflecting content

Link: https://jira.ez.no/browse/EZP-22603

## Description
The HTML pages had 'Home' as a title. Now they display the name of the content. A custom name can also be set in a dedicated template, I added an example of that for blog_posts (content name and publication date).

## Tests
Manual tests

## TODO
- [ ] Find a default page name to replace "Home" (see if SF convention)
- [ ] <del>Define spec for BDD testing</del>