Add relevant information to page title

Currently, page title is always the same.

It should comply with:
https://www.w3.org/TR/WCAG20/#navigation-mechanisms-title

To this effect, title should be:

• at home: home - product name
• on document: document name - document pill - product name
• on search: search name (or search saved name if any) - "search" - product name
• on task: task name - process name - product name
• on favourites : "favourites" - product name
• on collections : collection name - "collection" - product name
• on main page : page name - (a sub page is subtle) - product name
• on admin area : page name - "administration" - product name

product name => Framework.getProperty(Environment.PRODUCT_NAME)